# tablepress/3.4/libraries/vendor/PhpSpreadsheet/Worksheet/Worksheet.php

TablePress – Tables in WordPress made easy, version 3.4. 4,332 lines.

- Page: https://pluginprobe.com/plugins/tablepress/3.4/code/libraries/vendor/PhpSpreadsheet/Worksheet/Worksheet.php
- Raw: https://pluginprobe.com/plugins/tablepress/3.4/raw/libraries/vendor/PhpSpreadsheet/Worksheet/Worksheet.php
- Modified: 2026-09-30T03:50:46+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
page URL, for example `https://pluginprobe.com/plugins/tablepress/3.4/code/libraries/vendor/PhpSpreadsheet/Worksheet/Worksheet.php#L10-L20`.

```php
<?php

namespace TablePress\PhpOffice\PhpSpreadsheet\Worksheet;

use ArrayObject;
use TablePress\Composer\Pcre\Preg;
use Generator;
use TablePress\PhpOffice\PhpSpreadsheet\Calculation\Calculation;
use TablePress\PhpOffice\PhpSpreadsheet\Calculation\Functions;
use TablePress\PhpOffice\PhpSpreadsheet\Cell\AddressRange;
use TablePress\PhpOffice\PhpSpreadsheet\Cell\Cell;
use TablePress\PhpOffice\PhpSpreadsheet\Cell\CellAddress;
use TablePress\PhpOffice\PhpSpreadsheet\Cell\Coordinate;
use TablePress\PhpOffice\PhpSpreadsheet\Cell\DataType;
use TablePress\PhpOffice\PhpSpreadsheet\Cell\DataValidation;
use TablePress\PhpOffice\PhpSpreadsheet\Cell\Hyperlink;
use TablePress\PhpOffice\PhpSpreadsheet\Cell\IValueBinder;
use TablePress\PhpOffice\PhpSpreadsheet\Chart\Chart;
use TablePress\PhpOffice\PhpSpreadsheet\Collection\Cells;
use TablePress\PhpOffice\PhpSpreadsheet\Collection\CellsFactory;
use TablePress\PhpOffice\PhpSpreadsheet\Comment;
use TablePress\PhpOffice\PhpSpreadsheet\DefinedName;
use TablePress\PhpOffice\PhpSpreadsheet\Exception;
use TablePress\PhpOffice\PhpSpreadsheet\ReferenceHelper;
use TablePress\PhpOffice\PhpSpreadsheet\RichText\RichText;
use TablePress\PhpOffice\PhpSpreadsheet\Shared;
use TablePress\PhpOffice\PhpSpreadsheet\Shared\StringHelper;
use TablePress\PhpOffice\PhpSpreadsheet\Spreadsheet;
use TablePress\PhpOffice\PhpSpreadsheet\Style\Alignment;
use TablePress\PhpOffice\PhpSpreadsheet\Style\Color;
use TablePress\PhpOffice\PhpSpreadsheet\Style\Conditional;
use TablePress\PhpOffice\PhpSpreadsheet\Style\NumberFormat;
use TablePress\PhpOffice\PhpSpreadsheet\Style\Protection as StyleProtection;
use TablePress\PhpOffice\PhpSpreadsheet\Style\Style;
use TablePress\PhpOffice\PhpSpreadsheet\Worksheet\PivotTable\PivotTable;
use TablePress\PhpOffice\PhpSpreadsheet\Worksheet\Sparkline\Sparkline;
use TablePress\PhpOffice\PhpSpreadsheet\Worksheet\Sparkline\SparklineGroup;
use TablePress\PhpOffice\PhpSpreadsheet\Worksheet\Sparkline\SparklineType;

class Worksheet
{
	// Break types
	public const BREAK_NONE = 0;
	public const BREAK_ROW = 1;
	public const BREAK_COLUMN = 2;
	// Maximum column for row break
	public const BREAK_ROW_MAX_COLUMN = 16383;

	// Sheet state
	public const SHEETSTATE_VISIBLE = 'visible';
	public const SHEETSTATE_HIDDEN = 'hidden';
	public const SHEETSTATE_VERYHIDDEN = 'veryHidden';

	public const MERGE_CELL_CONTENT_EMPTY = 'empty';
	public const MERGE_CELL_CONTENT_HIDE = 'hide';
	public const MERGE_CELL_CONTENT_MERGE = 'merge';

	public const FUNCTION_LIKE_GROUPBY = '/\b(groupby|_xleta)\b/i'; // weird new syntax

	protected const SHEET_NAME_REQUIRES_NO_QUOTES = '/^[_\p{L}][_\p{L}\p{N}]*$/mui';

	/**
	 * Maximum 31 characters allowed for sheet title.
	 *
	 * @var int
	 */
	const SHEET_TITLE_MAXIMUM_LENGTH = 31;

	/**
	 * Invalid characters in sheet title.
	 */
	private const INVALID_CHARACTERS = ['*', ':', '/', '\\', '?', '[', ']'];

	/**
	 * Parent spreadsheet.
	 */
	private ?Spreadsheet $parent = null;

	/**
	 * Collection of cells.
	 */
	private Cells $cellCollection;

	/**
	 * Collection of row dimensions.
	 *
	 * @var RowDimension[]
	 */
	private array $rowDimensions = [];

	/**
	 * Default row dimension.
	 */
	private RowDimension $defaultRowDimension;

	/**
	 * Collection of column dimensions.
	 *
	 * @var ColumnDimension[]
	 */
	private array $columnDimensions = [];

	/**
	 * Default column dimension.
	 */
	private ColumnDimension $defaultColumnDimension;

	/**
	 * Collection of drawings.
	 *
	 * @var ArrayObject<int, BaseDrawing>
	 */
	private ArrayObject $drawingCollection;

	/**
	 * Collection of drawings.
	 *
	 * @var ArrayObject<int, BaseDrawing>
	 */
	private ArrayObject $inCellDrawingCollection;

	/**
	 * Collection of Chart objects.
	 *
	 * @var ArrayObject<int, Chart>
	 */
	private ArrayObject $chartCollection;

	/**
	 * Collection of Table objects.
	 *
	 * @var ArrayObject<int, Table>
	 */
	private ArrayObject $tableCollection;

	/**
	 * Collection of SparklineGroup objects.
	 *
	 * @var ArrayObject<int, SparklineGroup>
	 */
	private ArrayObject $sparklineGroupCollection;

	/**
	 * Collection of PivotTable objects.
	 *
	 * @var ArrayObject<int, PivotTable>
	 */
	private ArrayObject $pivotTableCollection;

	/**
	 * Worksheet title.
	 */
	private string $title = '';

	/**
	 * Sheet state.
	 */
	private string $sheetState;

	/**
	 * Page setup.
	 */
	private PageSetup $pageSetup;

	/**
	 * Page margins.
	 */
	private PageMargins $pageMargins;

	/**
	 * Page header/footer.
	 */
	private HeaderFooter $headerFooter;

	/**
	 * Sheet view.
	 */
	private SheetView $sheetView;

	/**
	 * Protection.
	 */
	private Protection $protection;

	/**
	 * Conditional styles. Indexed by cell coordinate, e.g. 'A1'.
	 *
	 * @var Conditional[][]
	 */
	private array $conditionalStylesCollection = [];

	/**
	 * Collection of row breaks.
	 *
	 * @var PageBreak[]
	 */
	private array $rowBreaks = [];

	/**
	 * Collection of column breaks.
	 *
	 * @var PageBreak[]
	 */
	private array $columnBreaks = [];

	/**
	 * Collection of merged cell ranges.
	 *
	 * @var string[]
	 */
	private array $mergeCells = [];

	/**
	 * Collection of protected cell ranges.
	 *
	 * @var ProtectedRange[]
	 */
	private array $protectedCells = [];

	/**
	 * Autofilter Range and selection.
	 */
	private AutoFilter $autoFilter;

	/**
	 * Freeze pane.
	 */
	private ?string $freezePane = null;

	/**
	 * Default position of the right bottom pane.
	 */
	private ?string $topLeftCell = null;

	private string $paneTopLeftCell = '';

	private string $activePane = '';

	private int $xSplit = 0;

	private int $ySplit = 0;

	private string $paneState = '';

	/**
	 * Properties of the 4 panes.
	 *
	 * @var (null|Pane)[]
	 */
	private array $panes = [
		'bottomRight' => null,
		'bottomLeft' => null,
		'topRight' => null,
		'topLeft' => null,
	];

	/**
	 * Show gridlines?
	 */
	private bool $showGridlines = true;

	/**
	 * Print gridlines?
	 */
	private bool $printGridlines = false;

	/**
	 * Show row and column headers?
	 */
	private bool $showRowColHeaders = true;

	/**
	 * Show summary below? (Row/Column outline).
	 */
	private bool $showSummaryBelow = true;

	/**
	 * Show summary right? (Row/Column outline).
	 */
	private bool $showSummaryRight = true;

	/**
	 * Collection of comments.
	 *
	 * @var Comment[]
	 */
	private array $comments = [];

	/**
	 * Active cell. (Only one!).
	 */
	private string $activeCell = 'A1';

	/**
	 * Selected cells.
	 */
	private string $selectedCells = 'A1';

	/**
	 * Cached highest column.
	 */
	private int $cachedHighestColumn = 1;

	/**
	 * Cached highest row.
	 */
	private int $cachedHighestRow = 1;

	/**
	 * Right-to-left?
	 */
	private bool $rightToLeft = false;

	/**
	 * Hyperlinks. Indexed by cell coordinate, e.g. 'A1'.
	 *
	 * @var Hyperlink[]
	 */
	private array $hyperlinkCollection = [];

	/**
	 * Data validation objects. Indexed by cell coordinate, e.g. 'A1'.
	 * Index can include ranges, and multiple cells/ranges.
	 *
	 * @var DataValidation[]
	 */
	private array $dataValidationCollection = [];

	/**
	 * Tab color.
	 */
	private ?Color $tabColor = null;

	/**
	 * CodeName.
	 */
	private ?string $codeName = null;

	/**
	 * Create a new worksheet.
	 */
	public function __construct(?Spreadsheet $parent = null, string $title = 'Worksheet')
	{
		// Set parent and title
		$this->parent = $parent;
		// Chart collection must be set before title
		$this->chartCollection = new ArrayObject();
		$this->setTitle($title, false, true, false);
		// setTitle can change $pTitle
		$this->setCodeName($this->getTitle());
		$this->setSheetState(self::SHEETSTATE_VISIBLE);

		$this->cellCollection = CellsFactory::getInstance($this);
		// Set page setup
		$this->pageSetup = new PageSetup();
		// Set page margins
		$this->pageMargins = new PageMargins();
		// Set page header/footer
		$this->headerFooter = new HeaderFooter();
		// Set sheet view
		$this->sheetView = new SheetView();
		// Drawing collection
		$this->drawingCollection = new ArrayObject();
		// In Cell Drawing collection
		$this->inCellDrawingCollection = new ArrayObject();
		// Protection
		$this->protection = new Protection();
		// Default row dimension
		$this->defaultRowDimension = new RowDimension(null);
		// Default column dimension
		$this->defaultColumnDimension = new ColumnDimension(null);
		// AutoFilter
		$this->autoFilter = new AutoFilter('', $this);
		// Table collection
		$this->tableCollection = new ArrayObject();
		// Sparkline group collection
		$this->sparklineGroupCollection = new ArrayObject();

		// Pivot table collection
		$this->pivotTableCollection = new ArrayObject();
	}

	/**
	 * Disconnect all cells from this Worksheet object,
	 * typically so that the worksheet object can be unset.
	 * The worksheet will be in an unusable state after
	 * this method has completed.
	 */
	public function disconnectCells(): void
	{
		if (isset($this->cellCollection)) { //* @phpstan-ignore isset.initializedProperty (may be null at destruct time)
			$this->cellCollection->unsetWorksheetCells();
			unset($this->cellCollection);
		}
		//    detach ourself from the workbook, so that it can then delete this worksheet successfully
		$this->parent = null;
	}

	/**
	 * Code to execute when this worksheet is unset().
	 */
	public function __destruct()
	{
		($nullsafeVariable1 = Calculation::getInstanceOrNull($this->parent)) ? $nullsafeVariable1->clearCalculationCacheForWorksheet($this->title) : null;

		$this->disconnectCells();
		unset($this->rowDimensions, $this->columnDimensions, $this->tableCollection, $this->sparklineGroupCollection, $this->drawingCollection, $this->inCellDrawingCollection, $this->chartCollection, $this->autoFilter, $this->pivotTableCollection);
	}

	/**
	 * Return the cell collection.
	 */
	public function getCellCollection(): Cells
	{
		return $this->cellCollection;
	}

	/**
	 * Get array of invalid characters for sheet title.
	 *
	 * @return string[]
	 */
	public static function getInvalidCharacters(): array
	{
		return self::INVALID_CHARACTERS;
	}

	/**
	 * Check sheet code name for valid Excel syntax.
	 *
	 * @param string $sheetCodeName The string to check
	 *
	 * @return string The valid string
	 */
	private static function checkSheetCodeName(string $sheetCodeName): string
	{
		$charCount = StringHelper::countCharacters($sheetCodeName);
		if ($charCount == 0) {
			throw new Exception('Sheet code name cannot be empty.');
		}
		// Some of the printable ASCII characters are invalid:  * : / \ ? [ ] and  first and last characters cannot be a "'"
		if (
			(str_replace(self::INVALID_CHARACTERS, '', $sheetCodeName) !== $sheetCodeName)
			|| (StringHelper::substring($sheetCodeName, -1, 1) == '\'')
			|| (StringHelper::substring($sheetCodeName, 0, 1) == '\'')
		) {
			throw new Exception('Invalid character found in sheet code name');
		}

		// Enforce maximum characters allowed for sheet title
		if ($charCount > self::SHEET_TITLE_MAXIMUM_LENGTH) {
			throw new Exception('Maximum ' . self::SHEET_TITLE_MAXIMUM_LENGTH . ' characters allowed in sheet code name.');
		}

		return $sheetCodeName;
	}

	/**
	 * Check sheet title for valid Excel syntax.
	 *
	 * @param string $sheetTitle The string to check
	 *
	 * @return string The valid string
	 */
	private static function checkSheetTitle(string $sheetTitle): string
	{
		// Some of the printable ASCII characters are invalid:  * : / \ ? [ ]
		if (str_replace(self::INVALID_CHARACTERS, '', $sheetTitle) !== $sheetTitle) {
			throw new Exception('Invalid character found in sheet title');
		}

		// Enforce maximum characters allowed for sheet title
		if (StringHelper::countCharacters($sheetTitle) > self::SHEET_TITLE_MAXIMUM_LENGTH) {
			throw new Exception('Maximum ' . self::SHEET_TITLE_MAXIMUM_LENGTH . ' characters allowed in sheet title.');
		}

		return $sheetTitle;
	}

	/**
	 * Get a sorted list of all cell coordinates currently held in the collection by row and column.
	 *
	 * @param bool $sorted Also sort the cell collection?
	 *
	 * @return string[]
	 */
	public function getCoordinates(bool $sorted = true): array
	{
		if (!isset($this->cellCollection)) { //* @phpstan-ignore isset.initializedProperty (may be null at destruct time)
			return [];
		}

		if ($sorted) {
			return $this->cellCollection->getSortedCoordinates();
		}

		return $this->cellCollection->getCoordinates();
	}

	/**
	 * Get collection of row dimensions.
	 *
	 * @return RowDimension[]
	 */
	public function getRowDimensions(): array
	{
		return $this->rowDimensions;
	}

	/**
	 * Get default row dimension.
	 */
	public function getDefaultRowDimension(): RowDimension
	{
		return $this->defaultRowDimension;
	}

	/**
	 * Get collection of column dimensions.
	 *
	 * @return ColumnDimension[]
	 */
	public function getColumnDimensions(): array
	{
		/** @var callable $callable */
		$callable = [self::class, 'columnDimensionCompare'];
		uasort($this->columnDimensions, $callable);

		return $this->columnDimensions;
	}

	private static function columnDimensionCompare(ColumnDimension $a, ColumnDimension $b): int
	{
		return $a->getColumnNumeric() - $b->getColumnNumeric();
	}

	/**
	 * Get default column dimension.
	 */
	public function getDefaultColumnDimension(): ColumnDimension
	{
		return $this->defaultColumnDimension;
	}

	/**
	 * Get collection of drawings.
	 *
	 * @return ArrayObject<int, BaseDrawing>
	 */
	public function getDrawingCollection(): ArrayObject
	{
		return $this->drawingCollection;
	}

	/**
	 * Get collection of drawings.
	 *
	 * @return ArrayObject<int, BaseDrawing>
	 */
	public function getInCellDrawingCollection(): ArrayObject
	{
		return $this->inCellDrawingCollection;
	}

	/**
	 * Get collection of charts.
	 *
	 * @return ArrayObject<int, Chart>
	 */
	public function getChartCollection(): ArrayObject
	{
		return $this->chartCollection;
	}

	public function addChart(Chart $chart): Chart
	{
		$chart->setWorksheet($this);
		$this->chartCollection[] = $chart;

		return $chart;
	}

	/**
	 * Return the count of charts on this worksheet.
	 *
	 * @return int The number of charts
	 */
	public function getChartCount(): int
	{
		return count($this->chartCollection);
	}

	/**
	 * Get a chart by its index position.
	 *
	 * @param null|int|string $index Chart index position
	 *
	 * @return Chart|false
	 */
	public function getChartByIndex($index)
	{
		$chartCount = count($this->chartCollection);
		if ($chartCount === 0 || (is_string($index) && $index !== (string) (int) $index)) {
			return false;
		}
		if ($index === null) {
			$index = --$chartCount;
		}
		if (!isset($this->chartCollection[$index])) {
			return false;
		}

		return $this->chartCollection[$index];
	}

	/**
	 * Return an array of the names of charts on this worksheet.
	 *
	 * @return string[] The names of charts
	 */
	public function getChartNames(): array
	{
		$chartNames = [];
		foreach ($this->chartCollection as $chart) {
			$chartNames[] = $chart->getName();
		}

		return $chartNames;
	}

	/**
	 * Get a chart by name.
	 *
	 * @param string $chartName Chart name
	 *
	 * @return Chart|false
	 */
	public function getChartByName(string $chartName)
	{
		foreach ($this->chartCollection as $index => $chart) {
			if ($chart->getName() == $chartName) {
				return $chart;
			}
		}

		return false;
	}

	public function getChartByNameOrThrow(string $chartName): Chart
	{
		$chart = $this->getChartByName($chartName);
		if ($chart !== false) {
			return $chart;
		}

		throw new Exception("Sheet does not have a chart named $chartName.");
	}

	/**
	 * Refresh column dimensions.
	 *
	 * @return $this
	 */
	public function refreshColumnDimensions()
	{
		$newColumnDimensions = [];
		foreach ($this->getColumnDimensions() as $objColumnDimension) {
			$newColumnDimensions[$objColumnDimension->getColumnIndex()] = $objColumnDimension;
		}

		$this->columnDimensions = $newColumnDimensions;

		return $this;
	}

	/**
	 * Refresh row dimensions.
	 *
	 * @return $this
	 */
	public function refreshRowDimensions()
	{
		$newRowDimensions = [];
		foreach ($this->getRowDimensions() as $objRowDimension) {
			$newRowDimensions[$objRowDimension->getRowIndex()] = $objRowDimension;
		}

		$this->rowDimensions = $newRowDimensions;

		return $this;
	}

	/**
	 * Calculate worksheet dimension.
	 *
	 * @return string String containing the dimension of this worksheet
	 */
	public function calculateWorksheetDimension(): string
	{
		// Return
		return 'A1:' . $this->getHighestColumn() . $this->getHighestRow();
	}

	/**
	 * Calculate worksheet data dimension.
	 *
	 * @return string String containing the dimension of this worksheet that actually contain data
	 */
	public function calculateWorksheetDataDimension(): string
	{
		// Return
		return 'A1:' . $this->getHighestDataColumn() . $this->getHighestDataRow();
	}

	/**
	 * Calculate widths for auto-size columns.
	 *
	 * @return $this
	 */
	public function calculateColumnWidths()
	{
		$activeSheet = ($nullsafeVariable2 = $this->getParent()) ? $nullsafeVariable2->getActiveSheetIndex() : null;
		$selectedCells = $this->selectedCells;
		// initialize $autoSizes array
		$autoSizes = [];
		foreach ($this->getColumnDimensions() as $colDimension) {
			if ($colDimension->getAutoSize()) {
				$autoSizes[$colDimension->getColumnIndex()] = -1;
			}
		}

		// There is only something to do if there are some auto-size columns
		if (!empty($autoSizes)) {
			$holdActivePane = $this->activePane;
			// build list of cells references that participate in a merge
			$isMergeCell = [];
			foreach ($this->getMergeCells() as $cells) {
				foreach (Coordinate::extractAllCellReferencesInRange($cells) as $cellReference) {
					$isMergeCell[$cellReference] = true;
				}
			}

			$autoFilterIndentRanges = (new AutoFit($this))->getAutoFilterIndentRanges();

			// loop through all cells in the worksheet
			foreach ($this->getCoordinates(false) as $coordinate) {
				$cell = $this->getCellOrNull($coordinate);

				if ($cell !== null && isset($autoSizes[$this->cellCollection->getCurrentColumn()])) {
					//Determine if cell is in merge range
					$isMerged = isset($isMergeCell[$this->cellCollection->getCurrentCoordinate()]);

					//By default merged cells should be ignored
					$isMergedButProceed = false;

					//The only exception is if it's a merge range value cell of a 'vertical' range (1 column wide)
					if ($isMerged && $cell->isMergeRangeValueCell()) {
						$range = (string) $cell->getMergeRange();
						$rangeBoundaries = Coordinate::rangeDimension($range);
						if ($rangeBoundaries[0] === 1) {
							$isMergedButProceed = true;
						}
					}

					// Determine width if cell is not part of a merge or does and is a value cell of 1-column wide range
					if (!$isMerged || $isMergedButProceed) {
						// Determine if we need to make an adjustment for the first row in an AutoFilter range that
						//    has a column filter dropdown
						$filterAdjustment = false;
						if (!empty($autoFilterIndentRanges)) {
							foreach ($autoFilterIndentRanges as $autoFilterFirstRowRange) {
								/** @var string $autoFilterFirstRowRange */
								if ($cell->isInRange($autoFilterFirstRowRange)) {
									$filterAdjustment = true;

									break;
								}
							}
						}

						$indentAdjustment = $cell->getStyle()->getAlignment()->getIndent();
						$indentAdjustment += (int) ($cell->getStyle()->getAlignment()->getHorizontal() === Alignment::HORIZONTAL_CENTER);

						// Calculated value
						// To formatted string
						$cellValue = NumberFormat::toFormattedString(
							$cell->getCalculatedValueString(),
							(string) $this->getParentOrThrow()->getCellXfByIndex($cell->getXfIndex())
								->getNumberFormat()->getFormatCode(true)
						);

						if ($cellValue !== '') {
							$autoSizes[$this->cellCollection->getCurrentColumn()] = max(
								$autoSizes[$this->cellCollection->getCurrentColumn()],
								round(
									Shared\Font::calculateColumnWidth(
										$this->getParentOrThrow()->getCellXfByIndex($cell->getXfIndex())->getFont(),
										$cellValue,
										(int) $this->getParentOrThrow()->getCellXfByIndex($cell->getXfIndex())
											->getAlignment()->getTextRotation(),
										$this->getParentOrThrow()->getDefaultStyle()->getFont(),
										$filterAdjustment,
										$indentAdjustment
									),
									3
								)
							);
						}
					}
				}
			}

			// adjust column widths
			foreach ($autoSizes as $columnIndex => $width) {
				if ($width == -1) {
					$width = $this->getDefaultColumnDimension()->getWidth();
				}
				$this->getColumnDimension($columnIndex)->setWidth($width);
			}
			$this->activePane = $holdActivePane;
		}
		if ($activeSheet !== null && $activeSheet >= 0) {
			// Okay, I get it now - if $activeSheet is not null,
			// then $this->getParent() must also be non-null.
			$this->getParent()->setActiveSheetIndex($activeSheet);
		}
		$this->setSelectedCells($selectedCells);

		return $this;
	}

	/**
	 * Get parent or null.
	 */
	public function getParent(): ?Spreadsheet
	{
		return $this->parent;
	}

	/**
	 * Get parent, throw exception if null.
	 */
	public function getParentOrThrow(): Spreadsheet
	{
		if ($this->parent !== null) {
			return $this->parent;
		}

		throw new Exception('Sheet does not have a parent.');
	}

	/**
	 * Re-bind parent.
	 *
	 * @return $this
	 */
	public function rebindParent(Spreadsheet $parent)
	{
		if ($this->parent !== null) {
			$definedNames = $this->parent->getDefinedNames();
			foreach ($definedNames as $definedName) {
				$parent->addDefinedName($definedName);
			}

			$this->parent->removeSheetByIndex(
				$this->parent->getIndex($this)
			);
		}
		$this->parent = $parent;

		return $this;
	}

	public function setParent(Spreadsheet $parent): self
	{
		$this->parent = $parent;

		return $this;
	}

	/**
	 * Get title.
	 */
	public function getTitle(): string
	{
		return $this->title;
	}

	/**
	 * Set title.
	 *
	 * @param string $title String containing the dimension of this worksheet
	 * @param bool $updateFormulaCellReferences Flag indicating whether cell references in formulae should
	 *            be updated to reflect the new sheet name.
	 *          This should be left as the default true, unless you are
	 *          certain that no formula cells on any worksheet contain
	 *          references to this worksheet
	 * @param bool $validate False to skip validation of new title. WARNING: This should only be set
	 *                       at parse time (by Readers), where titles can be assumed to be valid.
	 *
	 * @return $this
	 */
	public function setTitle(string $title, bool $updateFormulaCellReferences = true, bool $validate = true, bool $changeChartSheetNames = true)
	{
		// Is this a 'rename' or not?
		if ($this->getTitle() == $title) {
			return $this;
		}

		// Old title
		$oldTitle = $this->getTitle();

		if ($validate) {
			// Syntax check
			self::checkSheetTitle($title);

			if ($this->parent && $this->parent->getIndex($this, true) >= 0) {
				// Is there already such sheet name?
				if ($this->parent->sheetNameExists($title)) {
					// Use name, but append with lowest possible integer

					if (StringHelper::countCharacters($title) > 29) {
						$title = StringHelper::substring($title, 0, 29);
					}
					$i = 1;
					while ($this->parent->sheetNameExists($title . ' ' . $i)) {
						++$i;
						if ($i == 10) {
							if (StringHelper::countCharacters($title) > 28) {
								$title = StringHelper::substring($title, 0, 28);
							}
						} elseif ($i == 100) {
							if (StringHelper::countCharacters($title) > 27) {
								$title = StringHelper::substring($title, 0, 27);
							}
						}
					}

					$title .= " $i";
				}
			}
		}

		// Set title
		$this->title = $title;

		if ($this->parent && $this->parent->getIndex($this, true) >= 0) {
			// New title
			$newTitle = $this->getTitle();
			$this->parent->getCalculationEngine()
				->renameCalculationCacheForWorksheet($oldTitle, $newTitle);
			if ($updateFormulaCellReferences) {
				ReferenceHelper::getInstance()->updateNamedFormulae($this->parent, $oldTitle, $newTitle);
			}
		}
		if ($changeChartSheetNames) {
			$this->changeChartSheetNames($oldTitle, $title);
		}

		return $this;
	}

	private function changeChartSheetNames(string $oldTitle, string $title): void
	{
		$worksheets = [$this];
		if ($this->parent !== null) {
			$sheets = $this->parent->getAllSheets();
			if (in_array($this, $sheets, true)) {
				$worksheets = $sheets;
			}
		}
		$titleq = "'$title'!";
		$oldTitleq1 = preg_quote("'$oldTitle'!");
		$oldTitleq2 = preg_quote("$oldTitle!");
		$preg1 = "/$oldTitleq1|\\b$oldTitleq2/";
		foreach ($worksheets as $sheet) {
			foreach ($sheet->getChartCollection() as $chart) {
				foreach (((($nullsafeVariable3 = $chart->getPlotArea()) ? $nullsafeVariable3->getPlotGroup() : null) ?? []) as $plotGroup) {
					foreach ($plotGroup->getPlotCategories() as $plotCategory) {
						$dataSource = (string) $plotCategory->getDataSource();
						$dataSource2 = Preg::replace($preg1, $titleq, $dataSource);
						if ($dataSource2 !== $dataSource) {
							$plotCategory->setDataSource(
								$dataSource2
							);
						}
					}
					foreach ($plotGroup->getPlotLabels() as $plotLabel) {
						$dataSource = (string) $plotLabel->getDataSource();
						$dataSource2 = Preg::replace($preg1, $titleq, $dataSource);
						if ($dataSource2 !== $dataSource) {
							$plotLabel->setDataSource(
								$dataSource2
							);
						}
					}
					foreach ($plotGroup->getPlotValues() as $plotValue) {
						$dataSource = (string) $plotValue->getDataSource();
						$dataSource2 = Preg::replace($preg1, $titleq, $dataSource);
						if ($dataSource2 !== $dataSource) {
							$plotValue->setDataSource(
								$dataSource2
							);
						}
					}
				}
			}
		}
	}

	/**
	 * Get sheet state.
	 *
	 * @return string Sheet state (visible, hidden, veryHidden)
	 */
	public function getSheetState(): string
	{
		return $this->sheetState;
	}

	/**
	 * Set sheet state.
	 *
	 * @param string $value Sheet state (visible, hidden, veryHidden)
	 *
	 * @return $this
	 */
	public function setSheetState(string $value)
	{
		$this->sheetState = $value;

		return $this;
	}

	/**
	 * Get page setup.
	 */
	public function getPageSetup(): PageSetup
	{
		return $this->pageSetup;
	}

	/**
	 * Set page setup.
	 *
	 * @return $this
	 */
	public function setPageSetup(PageSetup $pageSetup)
	{
		$this->pageSetup = $pageSetup;

		return $this;
	}

	/**
	 * Get page margins.
	 */
	public function getPageMargins(): PageMargins
	{
		return $this->pageMargins;
	}

	/**
	 * Set page margins.
	 *
	 * @return $this
	 */
	public function setPageMargins(PageMargins $pageMargins)
	{
		$this->pageMargins = $pageMargins;

		return $this;
	}

	/**
	 * Get page header/footer.
	 */
	public function getHeaderFooter(): HeaderFooter
	{
		return $this->headerFooter;
	}

	/**
	 * Set page header/footer.
	 *
	 * @return $this
	 */
	public function setHeaderFooter(HeaderFooter $headerFooter)
	{
		$this->headerFooter = $headerFooter;

		return $this;
	}

	/**
	 * Get sheet view.
	 */
	public function getSheetView(): SheetView
	{
		return $this->sheetView;
	}

	/**
	 * Set sheet view.
	 *
	 * @return $this
	 */
	public function setSheetView(SheetView $sheetView)
	{
		$this->sheetView = $sheetView;

		return $this;
	}

	/**
	 * Get Protection.
	 */
	public function getProtection(): Protection
	{
		return $this->protection;
	}

	/**
	 * Set Protection.
	 *
	 * @return $this
	 */
	public function setProtection(Protection $protection)
	{
		$this->protection = $protection;

		return $this;
	}

	/**
	 * Get highest worksheet column.
	 *
	 * @param null|int|string $row Return the data highest column for the specified row,
	 *                                     or the highest column of any row if no row number is passed
	 *
	 * @return string Highest column name
	 */
	public function getHighestColumn($row = null): string
	{
		if ($row === null) {
			return Coordinate::stringFromColumnIndex($this->cachedHighestColumn);
		}

		return $this->getHighestDataColumn($row);
	}

	/**
	 * Get highest worksheet column that contains data.
	 *
	 * @param null|int|string $row Return the highest data column for the specified row,
	 *                                     or the highest data column of any row if no row number is passed
	 *
	 * @return string Highest column name that contains data
	 */
	public function getHighestDataColumn($row = null): string
	{
		return $this->cellCollection->getHighestColumn($row);
	}

	/**
	 * Get highest worksheet row.
	 *
	 * @param null|string $column Return the highest data row for the specified column,
	 *                                     or the highest row of any column if no column letter is passed
	 *
	 * @return int Highest row number
	 */
	public function getHighestRow(?string $column = null): int
	{
		if ($column === null) {
			return $this->cachedHighestRow;
		}

		return $this->getHighestDataRow($column);
	}

	/**
	 * Get highest worksheet row that contains data.
	 *
	 * @param null|string $column Return the highest data row for the specified column,
	 *                                     or the highest data row of any column if no column letter is passed
	 *
	 * @return int Highest row number that contains data
	 */
	public function getHighestDataRow(?string $column = null): int
	{
		return $this->cellCollection->getHighestRow($column);
	}

	/**
	 * Get highest worksheet column and highest row that have cell records.
	 *
	 * @return array{row: int, column: string} Highest column name and highest row number
	 */
	public function getHighestRowAndColumn(): array
	{
		return $this->cellCollection->getHighestRowAndColumn();
	}

	/**
	 * Set a cell value.
	 *
	 * @param array{0: int, 1: int}|CellAddress|string $coordinate Coordinate of the cell as a string, eg: 'C5';
	 *               or as an array of [$columnIndex, $row] (e.g. [3, 5]), or a CellAddress object.
	 * @param mixed $value Value for the cell
	 * @param null|IValueBinder $binder Value Binder to override the currently set Value Binder
	 *
	 * @return $this
	 */
	public function setCellValue($coordinate, $value, ?IValueBinder $binder = null)
	{
		$cellAddress = Functions::trimSheetFromCellReference(Validations::validateCellAddress($coordinate));
		$this->getCell($cellAddress)->setValue($value, $binder);

		return $this;
	}

	/**
	 * Set a cell value.
	 *
	 * @param array{0: int, 1: int}|CellAddress|string $coordinate Coordinate of the cell as a string, eg: 'C5';
	 *               or as an array of [$columnIndex, $row] (e.g. [3, 5]), or a CellAddress object.
	 * @param mixed $value Value of the cell
	 * @param string $dataType Explicit data type, see DataType::TYPE_*
	 *        Note that PhpSpreadsheet does not validate that the value and datatype are consistent, in using this
	 *             method, then it is your responsibility as an end-user developer to validate that the value and
	 *             the datatype match.
	 *       If you do mismatch value and datatpe, then the value you enter may be changed to match the datatype
	 *          that you specify.
	 *
	 * @see DataType
	 *
	 * @return $this
	 */
	public function setCellValueExplicit($coordinate, $value, string $dataType)
	{
		$cellAddress = Functions::trimSheetFromCellReference(Validations::validateCellAddress($coordinate));
		$this->getCell($cellAddress)->setValueExplicit($value, $dataType);

		return $this;
	}

	/**
	 * Get cell at a specific coordinate.
	 *
	 * @param array{0: int, 1: int}|CellAddress|string $coordinate Coordinate of the cell as a string, eg: 'C5';
	 *               or as an array of [$columnIndex, $row] (e.g. [3, 5]), or a CellAddress object.
	 *
	 * @return Cell Cell that was found or created
	 *              WARNING: Because the cell collection can be cached to reduce memory, it only allows one
	 *              "active" cell at a time in memory. If you assign that cell to a variable, then select
	 *              another cell using getCell() or any of its variants, the newly selected cell becomes
	 *              the "active" cell, and any previous assignment becomes a disconnected reference because
	 *              the active cell has changed.
	 */
	public function getCell($coordinate): Cell
	{
		$cellAddress = Functions::trimSheetFromCellReference(Validations::validateCellAddress($coordinate));

		// Shortcut for increased performance for the vast majority of simple cases
		if ($this->cellCollection->has($cellAddress)) {
			/** @var Cell $cell */
			$cell = $this->cellCollection->get($cellAddress);

			return $cell;
		}

		/** @var Worksheet $sheet */
		[$sheet, $finalCoordinate] = $this->getWorksheetAndCoordinate($cellAddress);
		$cell = $sheet->getCellCollection()->get($finalCoordinate);

		return $cell ?? $sheet->createNewCell($finalCoordinate);
	}

	/**
	 * Get the correct Worksheet and coordinate from a coordinate that may
	 * contains reference to another sheet or a named range.
	 *
	 * @return array{0: Worksheet, 1: string}
	 */
	private function getWorksheetAndCoordinate(string $coordinate): array
	{
		$sheet = null;
		$finalCoordinate = null;

		// Worksheet reference?
		if (str_contains($coordinate, '!')) {
			$worksheetReference = self::extractSheetTitle($coordinate, true, true);

			$sheet = $this->getParentOrThrow()->getSheetByName($worksheetReference[0]);
			$finalCoordinate = strtoupper($worksheetReference[1]);

			if ($sheet === null) {
				throw new Exception('Sheet not found for name: ' . $worksheetReference[0]);
			}
		} elseif (
			!Preg::isMatch('/^' . Calculation::CALCULATION_REGEXP_CELLREF . '$/i', $coordinate)
			&& Preg::isMatch('/^' . Calculation::CALCULATION_REGEXP_DEFINEDNAME . '$/iu', $coordinate)
		) {
			// Named range?
			$namedRange = $this->validateNamedRange($coordinate, true);
			if ($namedRange !== null) {
				$sheet = $namedRange->getWorksheet();
				if ($sheet === null) {
					throw new Exception('Sheet not found for named range: ' . $namedRange->getName());
				}

				$cellCoordinate = ltrim((string) substr($namedRange->getValue(), (int) strrpos($namedRange->getValue(), '!')), '!');
				$finalCoordinate = str_replace('$', '', $cellCoordinate);
			}
		}

		if ($sheet === null || $finalCoordinate === null) {
			$sheet = $this;
			$finalCoordinate = strtoupper($coordinate);
		}

		if (Coordinate::coordinateIsRange($finalCoordinate)) {
			throw new Exception('Cell coordinate string can not be a range of cells.');
		}
		$finalCoordinate = str_replace('$', '', $finalCoordinate);

		return [$sheet, $finalCoordinate];
	}

	/**
	 * Get an existing cell at a specific coordinate, or null.
	 *
	 * @param string $coordinate Coordinate of the cell, eg: 'A1'
	 *
	 * @return null|Cell Cell that was found or null
	 */
	private function getCellOrNull(string $coordinate): ?Cell
	{
		// Check cell collection
		if ($this->cellCollection->has($coordinate)) {
			return $this->cellCollection->get($coordinate);
		}

		return null;
	}

	/**
	 * Create a new cell at the specified coordinate.
	 *
	 * @param string $coordinate Coordinate of the cell
	 *
	 * @return Cell Cell that was created
	 *              WARNING: Because the cell collection can be cached to reduce memory, it only allows one
	 *              "active" cell at a time in memory. If you assign that cell to a variable, then select
	 *              another cell using getCell() or any of its variants, the newly selected cell becomes
	 *              the "active" cell, and any previous assignment becomes a disconnected reference because
	 *              the active cell has changed.
	 */
	public function createNewCell(string $coordinate): Cell
	{
		[$column, $row, $columnString] = Coordinate::indexesFromString($coordinate);
		$cell = new Cell(null, DataType::TYPE_NULL, $this);
		$this->cellCollection->add($coordinate, $cell);

		// Coordinates
		if ($column > $this->cachedHighestColumn) {
			$this->cachedHighestColumn = $column;
		}
		if ($row > $this->cachedHighestRow) {
			$this->cachedHighestRow = $row;
		}

		// Cell needs appropriate xfIndex from dimensions records
		//    but don't create dimension records if they don't already exist
		$rowDimension = $this->rowDimensions[$row] ?? null;
		$columnDimension = $this->columnDimensions[$columnString] ?? null;

		$xfSet = false;
		if ($rowDimension !== null) {
			$rowXf = (int) $rowDimension->getXfIndex();
			if ($rowXf > 0) {
				// then there is a row dimension with explicit style, assign it to the cell
				$cell->setXfIndex($rowXf);
				$xfSet = true;
			}
		}
		if (!$xfSet && $columnDimension !== null) {
			$colXf = (int) $columnDimension->getXfIndex();
			if ($colXf > 0) {
				// then there is a column dimension, assign it to the cell
				$cell->setXfIndex($colXf);
			}
		}

		return $cell;
	}

	/**
	 * Does the cell at a specific coordinate exist?
	 *
	 * @param array{0: int, 1: int}|CellAddress|string $coordinate Coordinate of the cell as a string, eg: 'C5';
	 *               or as an array of [$columnIndex, $row] (e.g. [3, 5]), or a CellAddress object.
	 */
	public function cellExists($coordinate): bool
	{
		$cellAddress = Validations::validateCellAddress($coordinate);
		[$sheet, $finalCoordinate] = $this->getWorksheetAndCoordinate($cellAddress);

		return $sheet->getCellCollection()->has($finalCoordinate);
	}

	/**
	 * Get row dimension at a specific row.
	 *
	 * @param int $row Numeric index of the row
	 */
	public function getRowDimension(int $row): RowDimension
	{
		// Get row dimension
		if (!isset($this->rowDimensions[$row])) {
			$this->rowDimensions[$row] = new RowDimension($row);

			$this->cachedHighestRow = max($this->cachedHighestRow, $row);
		}

		return $this->rowDimensions[$row];
	}

	public function getRowStyle(int $row): ?Style
	{
		return ($nullsafeVariable4 = $this->parent) ? $nullsafeVariable4->getCellXfByIndexOrNull(($nullsafeVariable6 = $this->rowDimensions[$row] ?? null) ? $nullsafeVariable6->getXfIndex() : null) : null;
	}

	public function rowDimensionExists(int $row): bool
	{
		return isset($this->rowDimensions[$row]);
	}

	public function columnDimensionExists(string $column): bool
	{
		return isset($this->columnDimensions[$column]);
	}

	/**
	 * Get column dimension at a specific column.
	 *
	 * @param string $column String index of the column eg: 'A'
	 */
	public function getColumnDimension(string $column): ColumnDimension
	{
		// Uppercase coordinate
		$column = strtoupper($column);

		// Fetch dimensions
		if (!isset($this->columnDimensions[$column])) {
			$this->columnDimensions[$column] = new ColumnDimension($column);

			$columnIndex = Coordinate::columnIndexFromString($column);
			if ($this->cachedHighestColumn < $columnIndex) {
				$this->cachedHighestColumn = $columnIndex;
			}
		}

		return $this->columnDimensions[$column];
	}

	/**
	 * Get column dimension at a specific column by using numeric cell coordinates.
	 *
	 * @param int $columnIndex Numeric column coordinate of the cell
	 */
	public function getColumnDimensionByColumn(int $columnIndex): ColumnDimension
	{
		return $this->getColumnDimension(Coordinate::stringFromColumnIndex($columnIndex));
	}

	public function getColumnStyle(string $column): ?Style
	{
		return ($nullsafeVariable5 = $this->parent) ? $nullsafeVariable5->getCellXfByIndexOrNull(($nullsafeVariable7 = $this->columnDimensions[$column] ?? null) ? $nullsafeVariable7->getXfIndex() : null) : null;
	}

	/**
	 * Get style for cell.
	 *
	 * @param AddressRange<CellAddress>|AddressRange<int>|AddressRange<string>|array{0: int, 1: int, 2: int, 3: int}|array{0: int, 1: int}|CellAddress|int|string $cellCoordinate
	 *              A simple string containing a cell address like 'A1' or a cell range like 'A1:E10'
	 *              or passing in an array of [$fromColumnIndex, $fromRow, $toColumnIndex, $toRow] (e.g. [3, 5, 6, 8]),
	 *              or a CellAddress or AddressRange object.
	 */
	public function getStyle($cellCoordinate): Style
	{
		if (is_string($cellCoordinate)) {
			$cellCoordinate = Validations::definedNameToCoordinate($cellCoordinate, $this);
		}
		$cellCoordinate = Validations::validateCellOrCellRange($cellCoordinate);
		$cellCoordinate = str_replace('$', '', $cellCoordinate);

		// set this sheet as active
		$this->getParentOrThrow()->setActiveSheetIndex($this->getParentOrThrow()->getIndex($this));

		// set cell coordinate as active
		$this->setSelectedCells($cellCoordinate);

		return $this->getParentOrThrow()->getCellXfSupervisor();
	}

	/**
	 * Get table styles set for the for given cell.
	 *
	 * @param Cell $cell
	 *              The Cell for which the tables are retrieved
	 *
	 * @return Table[]
	 */
	public function getTablesWithStylesForCell(Cell $cell): array
	{
		$retVal = [];

		foreach ($this->tableCollection as $table) {
			$dxfsTableStyle = $table->getStyle()->getTableDxfsStyle();
			if ($dxfsTableStyle !== null) {
				if ($dxfsTableStyle->getHeaderRowStyle() !== null || $dxfsTableStyle->getFirstRowStripeStyle() !== null || $dxfsTableStyle->getSecondRowStripeStyle() !== null) {
					$range = $table->getRange();
					if ($cell->isInRange($range)) {
						$retVal[] = $table;
					}
				}
			}
		}

		return $retVal;
	}

	/**
	 * Get tables without styles set for the for given cell.
	 *
	 * @param Cell $cell
	 *              The Cell for which the tables are retrieved
	 *
	 * @return Table[]
	 */
	public function getTablesWithoutStylesForCell(Cell $cell): array
	{
		$retVal = [];

		foreach ($this->tableCollection as $table) {
			$range = $table->getRange();
			if ($cell->isInRange($range)) {
				$dxfsTableStyle = $table->getStyle()->getTableDxfsStyle();
				if ($dxfsTableStyle === null || ($dxfsTableStyle->getHeaderRowStyle() === null && $dxfsTableStyle->getFirstRowStripeStyle() === null && $dxfsTableStyle->getSecondRowStripeStyle() === null)) {
					$retVal[] = $table;
				}
			}
		}

		return $retVal;
	}

	/**
	 * Get conditional styles for a cell.
	 *
	 * @param string $coordinate eg: 'A1' or 'A1:A3'.
	 *          If a single cell is referenced, then the array of conditional styles will be returned if the cell is
	 *               included in a conditional style range.
	 *          If a range of cells is specified, then the styles will only be returned if the range matches the entire
	 *               range of the conditional.
	 * @param bool $firstOnly default true, return all matching
	 *          conditionals ordered by priority if false, first only if true
	 *
	 * @return Conditional[]
	 */
	public function getConditionalStyles(string $coordinate, bool $firstOnly = true): array
	{
		$coordinate = strtoupper($coordinate);
		if (Preg::isMatch('/[: ,]/', $coordinate)) {
			return $this->conditionalStylesCollection[$coordinate] ?? [];
		}

		$conditionalStyles = [];
		foreach ($this->conditionalStylesCollection as $keyStylesOrig => $conditionalRange) {
			$keyStyles = Coordinate::resolveUnionAndIntersection($keyStylesOrig);
			$keyParts = explode(',', $keyStyles);
			foreach ($keyParts as $keyPart) {
				if ($keyPart === $coordinate) {
					if ($firstOnly) {
						return $conditionalRange;
					}
					$conditionalStyles[$keyStylesOrig] = $conditionalRange;

					break;
				} elseif (str_contains($keyPart, ':')) {
					if (Coordinate::coordinateIsInsideRange($keyPart, $coordinate)) {
						if ($firstOnly) {
							return $conditionalRange;
						}
						$conditionalStyles[$keyStylesOrig] = $conditionalRange;

						break;
					}
				}
			}
		}
		$outArray = [];
		foreach ($conditionalStyles as $conditionalArray) {
			foreach ($conditionalArray as $conditional) {
				$outArray[] = $conditional;
			}
		}
		usort($outArray, [self::class, 'comparePriority']);

		return $outArray;
	}

	private static function comparePriority(Conditional $condA, Conditional $condB): int
	{
		$a = $condA->getPriority();
		$b = $condB->getPriority();
		if ($a === $b) {
			return 0;
		}
		if ($a === 0) {
			return 1;
		}
		if ($b === 0) {
			return -1;
		}

		return ($a < $b) ? -1 : 1;
	}

	public function getConditionalRange(string $coordinate): ?string
	{
		$coordinate = strtoupper($coordinate);
		$cell = $this->getCell($coordinate);
		foreach (array_keys($this->conditionalStylesCollection) as $conditionalRange) {
			$cellBlocks = explode(',', Coordinate::resolveUnionAndIntersection($conditionalRange));
			foreach ($cellBlocks as $cellBlock) {
				if ($cell->isInRange($cellBlock)) {
					return $conditionalRange;
				}
			}
		}

		return null;
	}

	/**
	 * Do conditional styles exist for this cell?
	 *
	 * @param string $coordinate eg: 'A1' or 'A1:A3'.
	 *          If a single cell is specified, then this method will return true if that cell is included in a
	 *               conditional style range.
	 *          If a range of cells is specified, then true will only be returned if the range matches the entire
	 *               range of the conditional.
	 */
	public function conditionalStylesExists(string $coordinate): bool
	{
		return !empty($this->getConditionalStyles($coordinate));
	}

	/**
	 * Removes conditional styles for a cell.
	 *
	 * @param string $coordinate eg: 'A1'
	 *
	 * @return $this
	 */
	public function removeConditionalStyles(string $coordinate)
	{
		unset($this->conditionalStylesCollection[strtoupper($coordinate)]);

		return $this;
	}

	/**
	 * Get collection of conditional styles.
	 *
	 * @return Conditional[][]
	 */
	public function getConditionalStylesCollection(): array
	{
		return $this->conditionalStylesCollection;
	}

	/**
	 * Set conditional styles.
	 *
	 * @param string $coordinate eg: 'A1'
	 * @param Conditional[] $styles
	 *
	 * @return $this
	 */
	public function setConditionalStyles(string $coordinate, array $styles)
	{
		$this->conditionalStylesCollection[strtoupper($coordinate)] = $styles;

		return $this;
	}

	/**
	 * Duplicate cell style to a range of cells.
	 *
	 * Please note that this will overwrite existing cell styles for cells in range!
	 *
	 * @param Style $style Cell style to duplicate
	 * @param string $range Range of cells (i.e. "A1:B10"), or just one cell (i.e. "A1")
	 *
	 * @return $this
	 */
	public function duplicateStyle(Style $style, string $range)
	{
		// Add the style to the workbook if necessary
		$workbook = $this->getParentOrThrow();
		if ($existingStyle = $workbook->getCellXfByHashCode($style->getHashCode())) {
			// there is already such cell Xf in our collection
			$xfIndex = $existingStyle->getIndex();
		} else {
			// we don't have such a cell Xf, need to add
			$workbook->addCellXf($style);
			$xfIndex = $style->getIndex();
		}

		// Calculate range outer borders
		[$rangeStart, $rangeEnd] = Coordinate::rangeBoundaries($range . ':' . $range);

		// Make sure we can loop upwards on rows and columns
		if ($rangeStart[0] > $rangeEnd[0] && $rangeStart[1] > $rangeEnd[1]) {
			$tmp = $rangeStart;
			$rangeStart = $rangeEnd;
			$rangeEnd = $tmp;
		}

		// Loop through cells and apply styles
		for ($col = $rangeStart[0]; $col <= $rangeEnd[0]; ++$col) {
			for ($row = $rangeStart[1]; $row <= $rangeEnd[1]; ++$row) {
				$this->getCell(Coordinate::stringFromColumnIndex($col) . $row)->setXfIndex($xfIndex);
			}
		}

		return $this;
	}

	/**
	 * Duplicate conditional style to a range of cells.
	 *
	 * Please note that this will overwrite existing cell styles for cells in range!
	 *
	 * @param Conditional[] $styles Cell style to duplicate
	 * @param string $range Range of cells (i.e. "A1:B10"), or just one cell (i.e. "A1")
	 *
	 * @return $this
	 */
	public function duplicateConditionalStyle(array $styles, string $range = '')
	{
		foreach ($styles as $cellStyle) {
			if (!($cellStyle instanceof Conditional)) {
				throw new Exception('Style is not a conditional style');
			}
		}

		// Calculate range outer borders
		[$rangeStart, $rangeEnd] = Coordinate::rangeBoundaries($range . ':' . $range);

		// Make sure we can loop upwards on rows and columns
		if ($rangeStart[0] > $rangeEnd[0] && $rangeStart[1] > $rangeEnd[1]) {
			$tmp = $rangeStart;
			$rangeStart = $rangeEnd;
			$rangeEnd = $tmp;
		}

		// Loop through cells and apply styles
		for ($col = $rangeStart[0]; $col <= $rangeEnd[0]; ++$col) {
			for ($row = $rangeStart[1]; $row <= $rangeEnd[1]; ++$row) {
				$this->setConditionalStyles(Coordinate::stringFromColumnIndex($col) . $row, $styles);
			}
		}

		return $this;
	}

	/**
	 * Set break on a cell.
	 *
	 * @param array{0: int, 1: int}|CellAddress|string $coordinate Coordinate of the cell as a string, eg: 'C5';
	 *               or as an array of [$columnIndex, $row] (e.g. [3, 5]), or a CellAddress object.
	 * @param int $break Break type (type of Worksheet::BREAK_*)
	 *
	 * @return $this
	 */
	public function setBreak($coordinate, int $break, int $max = -1)
	{
		$cellAddress = Functions::trimSheetFromCellReference(Validations::validateCellAddress($coordinate));

		if ($break === self::BREAK_NONE) {
			unset($this->rowBreaks[$cellAddress], $this->columnBreaks[$cellAddress]);
		} elseif ($break === self::BREAK_ROW) {
			$this->rowBreaks[$cellAddress] = new PageBreak($break, $cellAddress, $max);
		} elseif ($break === self::BREAK_COLUMN) {
			$this->columnBreaks[$cellAddress] = new PageBreak($break, $cellAddress, $max);
		}

		return $this;
	}

	/**
	 * Get breaks.
	 *
	 * @return int[]
	 */
	public function getBreaks(): array
	{
		$breaks = [];
		/** @var callable $compareFunction */
		$compareFunction = [self::class, 'compareRowBreaks'];
		uksort($this->rowBreaks, $compareFunction);
		foreach ($this->rowBreaks as $break) {
			$breaks[$break->getCoordinate()] = self::BREAK_ROW;
		}
		/** @var callable $compareFunction */
		$compareFunction = [self::class, 'compareColumnBreaks'];
		uksort($this->columnBreaks, $compareFunction);
		foreach ($this->columnBreaks as $break) {
			$breaks[$break->getCoordinate()] = self::BREAK_COLUMN;
		}

		return $breaks;
	}

	/**
	 * Get row breaks.
	 *
	 * @return PageBreak[]
	 */
	public function getRowBreaks(): array
	{
		/** @var callable $compareFunction */
		$compareFunction = [self::class, 'compareRowBreaks'];
		uksort($this->rowBreaks, $compareFunction);

		return $this->rowBreaks;
	}

	protected static function compareRowBreaks(string $coordinate1, string $coordinate2): int
	{
		$row1 = Coordinate::indexesFromString($coordinate1)[1];
		$row2 = Coordinate::indexesFromString($coordinate2)[1];

		return $row1 - $row2;
	}

	protected static function compareColumnBreaks(string $coordinate1, string $coordinate2): int
	{
		$column1 = Coordinate::indexesFromString($coordinate1)[0];
		$column2 = Coordinate::indexesFromString($coordinate2)[0];

		return $column1 - $column2;
	}

	/**
	 * Get column breaks.
	 *
	 * @return PageBreak[]
	 */
	public function getColumnBreaks(): array
	{
		/** @var callable $compareFunction */
		$compareFunction = [self::class, 'compareColumnBreaks'];
		uksort($this->columnBreaks, $compareFunction);

		return $this->columnBreaks;
	}

	/**
	 * Set merge on a cell range.
	 *
	 * @param AddressRange<CellAddress>|AddressRange<int>|AddressRange<string>|array{0: int, 1: int, 2: int, 3: int}|array{0: int, 1: int}|string $range A simple string containing a Cell range like 'A1:E10'
	 *              or passing in an array of [$fromColumnIndex, $fromRow, $toColumnIndex, $toRow] (e.g. [3, 5, 6, 8]),
	 *              or an AddressRange.
	 * @param string $behaviour How the merged cells should behave.
	 *               Possible values are:
	 *                   MERGE_CELL_CONTENT_EMPTY - Empty the content of the hidden cells
	 *                   MERGE_CELL_CONTENT_HIDE - Keep the content of the hidden cells
	 *                   MERGE_CELL_CONTENT_MERGE - Move the content of the hidden cells into the first cell
	 *
	 * @return $this
	 */
	public function mergeCells($range, string $behaviour = self::MERGE_CELL_CONTENT_EMPTY)
	{
		$range = Functions::trimSheetFromCellReference(Validations::validateCellRange($range));

		if (!str_contains($range, ':')) {
			$range .= ":{$range}";
		}

		if (!Preg::isMatch('/^([A-Z]+)(\d+):([A-Z]+)(\d+)$/', $range, $matches)) {
			throw new Exception('Merge must be on a valid range of cells.');
		}

		$this->mergeCells[$range] = $range;
		$firstRow = (int) $matches[2];
		$lastRow = (int) $matches[4];
		$firstColumn = $matches[1];
		$lastColumn = $matches[3];
		$firstColumnIndex = Coordinate::columnIndexFromString($firstColumn);
		$lastColumnIndex = Coordinate::columnIndexFromString($lastColumn);
		$numberRows = $lastRow - $firstRow;
		$numberColumns = $lastColumnIndex - $firstColumnIndex;

		if ($numberRows === 1 && $numberColumns === 1) {
			return $this;
		}

		// create upper left cell if it does not already exist
		$upperLeft = "{$firstColumn}{$firstRow}";
		if (!$this->cellExists($upperLeft)) {
			$this->getCell($upperLeft)->setValueExplicit(null, DataType::TYPE_NULL);
		}

		if ($behaviour !== self::MERGE_CELL_CONTENT_HIDE) {
			// Blank out the rest of the cells in the range (if they exist)
			if ($numberRows > $numberColumns) {
				$this->clearMergeCellsByColumn($firstColumn, $lastColumn, $firstRow, $lastRow, $upperLeft, $behaviour);
			} else {
				$this->clearMergeCellsByRow($firstColumn, $lastColumnIndex, $firstRow, $lastRow, $upperLeft, $behaviour);
			}
		}

		return $this;
	}

	private function clearMergeCellsByColumn(string $firstColumn, string $lastColumn, int $firstRow, int $lastRow, string $upperLeft, string $behaviour): void
	{
		$leftCellValue = ($behaviour === self::MERGE_CELL_CONTENT_MERGE)
			? [$this->getCell($upperLeft)->getFormattedValue()]
			: [];

		foreach ($this->getColumnIterator($firstColumn, $lastColumn) as $column) {
			$iterator = $column->getCellIterator($firstRow);
			$iterator->setIterateOnlyExistingCells(true);
			foreach ($iterator as $cell) {
				$row = $cell->getRow();
				if ($row > $lastRow) {
					break;
				}
				$leftCellValue = $this->mergeCellBehaviour($cell, $upperLeft, $behaviour, $leftCellValue);
			}
		}

		if ($behaviour === self::MERGE_CELL_CONTENT_MERGE) {
			/** @var string[] $leftCellValue */
			$this->getCell($upperLeft)->setValueExplicit(implode(' ', $leftCellValue), DataType::TYPE_STRING);
		}
	}

	private function clearMergeCellsByRow(string $firstColumn, int $lastColumnIndex, int $firstRow, int $lastRow, string $upperLeft, string $behaviour): void
	{
		$leftCellValue = ($behaviour === self::MERGE_CELL_CONTENT_MERGE)
			? [$this->getCell($upperLeft)->getFormattedValue()]
			: [];

		foreach ($this->getRowIterator($firstRow, $lastRow) as $row) {
			$iterator = $row->getCellIterator($firstColumn);
			$iterator->setIterateOnlyExistingCells(true);
			foreach ($iterator as $cell) {
				$column = $cell->getColumn();
				$columnIndex = Coordinate::columnIndexFromString($column);
				if ($columnIndex > $lastColumnIndex) {
					break;
				}
				$leftCellValue = $this->mergeCellBehaviour($cell, $upperLeft, $behaviour, $leftCellValue);
			}
		}

		if ($behaviour === self::MERGE_CELL_CONTENT_MERGE) {
			/** @var string[] $leftCellValue */
			$this->getCell($upperLeft)->setValueExplicit(implode(' ', $leftCellValue), DataType::TYPE_STRING);
		}
	}

	/**
	 * @param mixed[] $leftCellValue
	 *
	 * @return mixed[]
	 */
	public function mergeCellBehaviour(Cell $cell, string $upperLeft, string $behaviour, array $leftCellValue): array
	{
		if ($cell->getCoordinate() !== $upperLeft) {
			Calculation::getInstance($cell->getWorksheet()->getParentOrThrow())->flushInstance();
			if ($behaviour === self::MERGE_CELL_CONTENT_MERGE) {
				$cellValue = $cell->getFormattedValue();
				if ($cellValue !== '') {
					$leftCellValue[] = $cellValue;
				}
			}
			$cell->setValueExplicit(null, DataType::TYPE_NULL);
		}

		return $leftCellValue;
	}

	/**
	 * Remove merge on a cell range.
	 *
	 * @param AddressRange<CellAddress>|AddressRange<int>|AddressRange<string>|array{0: int, 1: int, 2: int, 3: int}|array{0: int, 1: int}|string $range A simple string containing a Cell range like 'A1:E10'
	 *              or passing in an array of [$fromColumnIndex, $fromRow, $toColumnIndex, $toRow] (e.g. [3, 5, 6, 8]),
	 *              or an AddressRange.
	 *
	 * @return $this
	 */
	public function unmergeCells($range)
	{
		$range = Functions::trimSheetFromCellReference(Validations::validateCellRange($range));

		if (str_contains($range, ':')) {
			if (isset($this->mergeCells[$range])) {
				unset($this->mergeCells[$range]);
			} else {
				throw new Exception('Cell range ' . $range . ' not known as merged.');
			}
		} else {
			throw new Exception('Merge can only be removed from a range of cells.');
		}

		return $this;
	}

	/**
	 * Get merge cells array.
	 *
	 * @return string[]
	 */
	public function getMergeCells(): array
	{
		return $this->mergeCells;
	}

	/**
	 * Set merge cells array for the entire sheet. Use instead mergeCells() to merge
	 * a single cell range.
	 *
	 * @param string[] $mergeCells
	 *
	 * @return $this
	 */
	public function setMergeCells(array $mergeCells)
	{
		$this->mergeCells = $mergeCells;

		return $this;
	}

	/**
	 * Set protection on a cell or cell range.
	 *
	 * @param AddressRange<CellAddress>|AddressRange<int>|AddressRange<string>|array{0: int, 1: int, 2: int, 3: int}|array{0: int, 1: int}|CellAddress|int|string $range A simple string containing a Cell range like 'A1:E10'
	 *              or passing in an array of [$fromColumnIndex, $fromRow, $toColumnIndex, $toRow] (e.g. [3, 5, 6, 8]),
	 *              or a CellAddress or AddressRange object.
	 * @param string $password Password to unlock the protection
	 * @param bool $alreadyHashed If the password has already been hashed, set this to true
	 *
	 * @return $this
	 */
	public function protectCells($range, string $password = '', bool $alreadyHashed = false, string $name = '', string $securityDescriptor = '')
	{
		$range = Functions::trimSheetFromCellReference(Validations::validateCellOrCellRange($range));

		if (!$alreadyHashed && $password !== '') {
			$password = Shared\PasswordHasher::hashPassword($password);
		}
		$this->protectedCells[$range] = new ProtectedRange($range, $password, $name, $securityDescriptor);

		return $this;
	}

	/**
	 * Remove protection on a cell or cell range.
	 *
	 * @param AddressRange<CellAddress>|AddressRange<int>|AddressRange<string>|array{0: int, 1: int, 2: int, 3: int}|array{0: int, 1: int}|CellAddress|int|string $range A simple string containing a Cell range like 'A1:E10'
	 *              or passing in an array of [$fromColumnIndex, $fromRow, $toColumnIndex, $toRow] (e.g. [3, 5, 6, 8]),
	 *              or a CellAddress or AddressRange object.
	 *
	 * @return $this
	 */
	public function unprotectCells($range)
	{
		$range = Functions::trimSheetFromCellReference(Validations::validateCellOrCellRange($range));

		if (isset($this->protectedCells[$range])) {
			unset($this->protectedCells[$range]);
		} else {
			throw new Exception('Cell range ' . $range . ' not known as protected.');
		}

		return $this;
	}

	/**
	 * Get protected cells.
	 *
	 * @return ProtectedRange[]
	 */
	public function getProtectedCellRanges(): array
	{
		return $this->protectedCells;
	}

	/**
	 * Get Autofilter.
	 */
	public function getAutoFilter(): AutoFilter
	{
		return $this->autoFilter;
	}

	/**
	 * Set AutoFilter.
	 *
	 * @param AddressRange<CellAddress>|AddressRange<int>|AddressRange<string>|array{0: int, 1: int, 2: int, 3: int}|array{0: int, 1: int}|AutoFilter|string $autoFilterOrRange
	 *            A simple string containing a Cell range like 'A1:E10' is permitted for backward compatibility
	 *              or passing in an array of [$fromColumnIndex, $fromRow, $toColumnIndex, $toRow] (e.g. [3, 5, 6, 8]),
	 *              or an AddressRange.
	 *
	 * @return $this
	 */
	public function setAutoFilter($autoFilterOrRange)
	{
		if (is_object($autoFilterOrRange) && ($autoFilterOrRange instanceof AutoFilter)) {
			$this->autoFilter = $autoFilterOrRange;
		} else {
			$cellRange = Functions::trimSheetFromCellReference(Validations::validateCellRange($autoFilterOrRange));

			$this->autoFilter->setRange($cellRange);
		}

		return $this;
	}

	/**
	 * Remove autofilter.
	 */
	public function removeAutoFilter(): self
	{
		$this->autoFilter->setRange('');

		return $this;
	}

	/**
	 * Get collection of Tables.
	 *
	 * @return ArrayObject<int, Table>
	 */
	public function getTableCollection(): ArrayObject
	{
		return $this->tableCollection;
	}

	/**
	 * Add Table.
	 *
	 * @return $this
	 */
	public function addTable(Table $table): self
	{
		$table->setWorksheet($this);
		$this->tableCollection[] = $table;

		return $this;
	}

	/**
	 * @return string[] array of Table names
	 */
	public function getTableNames(): array
	{
		$tableNames = [];

		foreach ($this->tableCollection as $table) {
			/** @var Table $table */
			$tableNames[] = $table->getName();
		}

		return $tableNames;
	}

	/**
	 * @param string $name the table name to search
	 *
	 * @return null|Table The table from the tables collection, or null if not found
	 */
	public function getTableByName(string $name): ?Table
	{
		$tableIndex = $this->getTableIndexByName($name);

		return ($tableIndex === null) ? null : $this->tableCollection[$tableIndex];
	}

	/**
	 * @param string $name the table name to search
	 *
	 * @return null|int The index of the located table in the tables collection, or null if not found
	 */
	protected function getTableIndexByName(string $name): ?int
	{
		$name = StringHelper::strToUpper($name);
		foreach ($this->tableCollection as $index => $table) {
			/** @var Table $table */
			if (StringHelper::strToUpper($table->getName()) === $name) {
				return $index;
			}
		}

		return null;
	}

	/**
	 * Remove Table by name.
	 *
	 * @param string $name Table name
	 *
	 * @return $this
	 */
	public function removeTableByName(string $name): self
	{
		$tableIndex = $this->getTableIndexByName($name);

		if ($tableIndex !== null) {
			unset($this->tableCollection[$tableIndex]);
		}

		return $this;
	}

	/**
	 * Remove collection of Tables.
	 */
	public function removeTableCollection(): self
	{
		$this->tableCollection = new ArrayObject();

		return $this;
	}

	/**
	 * Get collection of SparklineGroups.
	 *
	 * @return ArrayObject<int, SparklineGroup>
	 */
	public function getSparklineGroupCollection(): ArrayObject
	{
		return $this->sparklineGroupCollection;
	}

	/**
	 * Add a SparklineGroup.
	 *
	 * @return $this
	 */
	public function addSparklineGroup(SparklineGroup $sparklineGroup): self
	{
		$this->sparklineGroupCollection[] = $sparklineGroup;

		return $this;
	}

	/**
				 * Add a single Sparkline, wrapping it in its own SparklineGroup.
				 *
				 * This is a convenience method for the common case of adding one sparkline
				 * with default formatting; the created group is returned so its formatting
				 * can be adjusted.
				 *
				 * @param mixed $type the type of sparkline (defaults to line)
				 * @param \TablePress\PhpOffice\PhpSpreadsheet\Worksheet\Sparkline\SparklineType::* $type
				 */
				public function addSparkline(Sparkline $sparkline, $type = SparklineType::Line): SparklineGroup
	{
		$group = new SparklineGroup();
		$group->setType($type);
		$group->addSparkline($sparkline);
		$this->addSparklineGroup($group);

		return $group;
	}

	/**
	 * Remove all SparklineGroups.
	 *
	 * @return $this
	 */
	public function removeSparklineGroupCollection(): self
	{
		$this->sparklineGroupCollection = new ArrayObject();

		return $this;
	}

	/**
	 * Get collection of PivotTables.
	 *
	 * @return ArrayObject<int, PivotTable>
	 */
	public function getPivotTableCollection(): ArrayObject
	{
		return $this->pivotTableCollection;
	}

	/**
	 * Get collection of PivotTables (alias of getPivotTableCollection()).
	 *
	 * @return ArrayObject<int, PivotTable>
	 */
	public function getPivotTables(): ArrayObject
	{
		return $this->pivotTableCollection;
	}

	/**
	 * Add a PivotTable to this worksheet.
	 *
	 * @return $this
	 */
	public function addPivotTable(PivotTable $pivotTable): self
	{
		$pivotTable->setWorksheet($this);
		$this->pivotTableCollection[] = $pivotTable;

		return $this;
	}

	/**
	 * @return string[] array of PivotTable names
	 */
	public function getPivotTableNames(): array
	{
		$pivotTableNames = [];

		foreach ($this->pivotTableCollection as $pivotTable) {
			$pivotTableNames[] = $pivotTable->getName();
		}

		return $pivotTableNames;
	}

	/**
	 * @param string $name the pivot table name to search
	 *
	 * @return null|PivotTable The pivot table from the collection, or null if not found
	 */
	public function getPivotTableByName(string $name): ?PivotTable
	{
		$name = StringHelper::strToUpper($name);
		foreach ($this->pivotTableCollection as $pivotTable) {
			if (StringHelper::strToUpper($pivotTable->getName()) === $name) {
				return $pivotTable;
			}
		}

		return null;
	}

	/**
	 * Remove collection of PivotTables.
	 */
	public function removePivotTableCollection(): self
	{
		$this->pivotTableCollection = new ArrayObject();

		return $this;
	}

	/**
	 * Get Freeze Pane.
	 */
	public function getFreezePane(): ?string
	{
		return $this->freezePane;
	}

	/**
	 * Freeze Pane.
	 *
	 * Examples:
	 *
	 *     - A2 will freeze the rows above cell A2 (i.e row 1)
	 *     - B1 will freeze the columns to the left of cell B1 (i.e column A)
	 *     - B2 will freeze the rows above and to the left of cell B2 (i.e row 1 and column A)
	 *
	 * @param null|array{0: int, 1: int}|CellAddress|string $coordinate Coordinate of the cell as a string, eg: 'C5';
	 *            or as an array of [$columnIndex, $row] (e.g. [3, 5]), or a CellAddress object.
	 *        Passing a null value for this argument will clear any existing freeze pane for this worksheet.
	 * @param null|array{0: int, 1: int}|CellAddress|string $topLeftCell default position of the right bottom pane
	 *            Coordinate of the cell as a string, eg: 'C5'; or as an array of [$columnIndex, $row] (e.g. [3, 5]),
	 *            or a CellAddress object.
	 *
	 * @return $this
	 */
	public function freezePane($coordinate, $topLeftCell = null, bool $frozenSplit = false)
	{
		$this->panes = [
			'bottomRight' => null,
			'bottomLeft' => null,
			'topRight' => null,
			'topLeft' => null,
		];
		$cellAddress = ($coordinate !== null)
			? Functions::trimSheetFromCellReference(Validations::validateCellAddress($coordinate))
			: null;
		if ($cellAddress !== null && Coordinate::coordinateIsRange($cellAddress)) {
			throw new Exception('Freeze pane can not be set on a range of cells.');
		}
		$topLeftCell = ($topLeftCell !== null)
			? Functions::trimSheetFromCellReference(Validations::validateCellAddress($topLeftCell))
			: null;

		if ($cellAddress !== null && $topLeftCell === null) {
			$coordinate = Coordinate::coordinateFromString($cellAddress);
			$topLeftCell = $coordinate[0] . $coordinate[1];
		}

		$topLeftCell = "$topLeftCell";
		$this->paneTopLeftCell = $topLeftCell;

		$this->freezePane = $cellAddress;
		$this->topLeftCell = $topLeftCell;
		if ($cellAddress === null) {
			$this->paneState = '';
			$this->xSplit = $this->ySplit = 0;
			$this->activePane = '';
		} else {
			$coordinates = Coordinate::indexesFromString($cellAddress);
			$this->xSplit = $coordinates[0] - 1;
			$this->ySplit = $coordinates[1] - 1;
			if ($this->xSplit > 0 || $this->ySplit > 0) {
				$this->paneState = $frozenSplit ? self::PANE_FROZENSPLIT : self::PANE_FROZEN;
				$this->setSelectedCellsActivePane();
			} else {
				$this->paneState = '';
				$this->freezePane = null;
				$this->activePane = '';
			}
		}

		return $this;
	}

	public function setTopLeftCell(string $topLeftCell): self
	{
		$this->topLeftCell = $topLeftCell;

		return $this;
	}

	/**
	 * Unfreeze Pane.
	 *
	 * @return $this
	 */
	public function unfreezePane()
	{
		return $this->freezePane(null);
	}

	/**
	 * Get the default position of the right bottom pane.
	 */
	public function getTopLeftCell(): ?string
	{
		return $this->topLeftCell;
	}

	public function getPaneTopLeftCell(): string
	{
		return $this->paneTopLeftCell;
	}

	public function setPaneTopLeftCell(string $paneTopLeftCell): self
	{
		$this->paneTopLeftCell = $paneTopLeftCell;

		return $this;
	}

	public function usesPanes(): bool
	{
		return $this->xSplit > 0 || $this->ySplit > 0;
	}

	public function getPane(string $position): ?Pane
	{
		return $this->panes[$position] ?? null;
	}

	public function setPane(string $position, ?Pane $pane): self
	{
		if (array_key_exists($position, $this->panes)) {
			$this->panes[$position] = $pane;
		}

		return $this;
	}

	/** @return (null|Pane)[] */
	public function getPanes(): array
	{
		return $this->panes;
	}

	public function getActivePane(): string
	{
		return $this->activePane;
	}

	public function setActivePane(string $activePane): self
	{
		$this->activePane = array_key_exists($activePane, $this->panes) ? $activePane : '';

		return $this;
	}

	public function getXSplit(): int
	{
		return $this->xSplit;
	}

	public function setXSplit(int $xSplit): self
	{
		$this->xSplit = $xSplit;
		if (in_array($this->paneState, self::VALIDFROZENSTATE, true)) {
			$this->freezePane([$this->xSplit + 1, $this->ySplit + 1], $this->topLeftCell, $this->paneState === self::PANE_FROZENSPLIT);
		}

		return $this;
	}

	public function getYSplit(): int
	{
		return $this->ySplit;
	}

	public function setYSplit(int $ySplit): self
	{
		$this->ySplit = $ySplit;
		if (in_array($this->paneState, self::VALIDFROZENSTATE, true)) {
			$this->freezePane([$this->xSplit + 1, $this->ySplit + 1], $this->topLeftCell, $this->paneState === self::PANE_FROZENSPLIT);
		}

		return $this;
	}

	public function getPaneState(): string
	{
		return $this->paneState;
	}

	public const PANE_FROZEN = 'frozen';
	public const PANE_FROZENSPLIT = 'frozenSplit';
	public const PANE_SPLIT = 'split';
	private const VALIDPANESTATE = [self::PANE_FROZEN, self::PANE_SPLIT, self::PANE_FROZENSPLIT];
	private const VALIDFROZENSTATE = [self::PANE_FROZEN, self::PANE_FROZENSPLIT];

	public function setPaneState(string $paneState): self
	{
		$this->paneState = in_array($paneState, self::VALIDPANESTATE, true) ? $paneState : '';
		if (in_array($this->paneState, self::VALIDFROZENSTATE, true)) {
			$this->freezePane([$this->xSplit + 1, $this->ySplit + 1], $this->topLeftCell, $this->paneState === self::PANE_FROZENSPLIT);
		} else {
			$this->freezePane = null;
		}

		return $this;
	}

	/**
	 * Insert a new row, updating all possible related data.
	 *
	 * @param int $before Insert before this row number
	 * @param int $numberOfRows Number of new rows to insert
	 *
	 * @return $this
	 */
	public function insertNewRowBefore(int $before, int $numberOfRows = 1)
	{
		if ($before >= 1) {
			$objReferenceHelper = ReferenceHelper::getInstance();
			$objReferenceHelper->insertNewBefore('A' . $before, 0, $numberOfRows, $this);
		} else {
			throw new Exception('Rows can only be inserted before at least row 1.');
		}

		return $this;
	}

	/**
	 * Insert a new column, updating all possible related data.
	 *
	 * @param string $before Insert before this column Name, eg: 'A'
	 * @param int $numberOfColumns Number of new columns to insert
	 *
	 * @return $this
	 */
	public function insertNewColumnBefore(string $before, int $numberOfColumns = 1)
	{
		if (!is_numeric($before)) {
			$objReferenceHelper = ReferenceHelper::getInstance();
			$objReferenceHelper->insertNewBefore($before . '1', $numberOfColumns, 0, $this);
		} else {
			throw new Exception('Column references should not be numeric.');
		}

		return $this;
	}

	/**
	 * Insert a new column, updating all possible related data.
	 *
	 * @param int $beforeColumnIndex Insert before this column ID (numeric column coordinate of the cell)
	 * @param int $numberOfColumns Number of new columns to insert
	 *
	 * @return $this
	 */
	public function insertNewColumnBeforeByIndex(int $beforeColumnIndex, int $numberOfColumns = 1)
	{
		if ($beforeColumnIndex >= 1) {
			return $this->insertNewColumnBefore(Coordinate::stringFromColumnIndex($beforeColumnIndex), $numberOfColumns);
		}

		throw new Exception('Columns can only be inserted before at least column A (1).');
	}

	/**
	 * Delete a row, updating all possible related data.
	 *
	 * @param int $row Remove rows, starting with this row number
	 * @param int $numberOfRows Number of rows to remove
	 *
	 * @return $this
	 */
	public function removeRow(int $row, int $numberOfRows = 1)
	{
		if ($row < 1) {
			throw new Exception('Rows to be deleted should at least start from row 1.');
		}
		if ($numberOfRows === 0) {
			return $this;
		}
		if ($numberOfRows < 0) {
			$newRow = max(1, $row + $numberOfRows + 1);
			$numberOfRows = $row - $newRow + 1;
			$row = $newRow;
		}
		$newHighestRow = $this->cachedHighestRow;
		if ($newHighestRow >= $row) {
			$newHighestRow = max($row - 1, $this->cachedHighestRow - $numberOfRows);
		}
		$startRow = $row;
		$endRow = $startRow + $numberOfRows - 1;
		$removeKeys = [];
		$addKeys = [];
		foreach ($this->mergeCells as $key => $value) {
			if (
				Preg::isMatch(
					'/^([a-z]{1,3})(\d+):([a-z]{1,3})(\d+)/i',
					$key,
					$matches
				)
			) {
				$startMergeInt = (int) $matches[2];
				$endMergeInt = (int) $matches[4];
				if ($startMergeInt >= $startRow) {
					if ($startMergeInt <= $endRow) {
						$removeKeys[] = $key;
					}
				} elseif ($endMergeInt >= $startRow) {
					if ($endMergeInt <= $endRow) {
						$temp = $endMergeInt - 1;
						$removeKeys[] = $key;
						if ($temp !== $startMergeInt) {
							$temp3 = $matches[1] . $matches[2] . ':' . $matches[3] . $temp;
							$addKeys[] = $temp3;
						}
					}
				}
			}
		}
		foreach ($removeKeys as $key) {
			unset($this->mergeCells[$key]);
		}
		foreach ($addKeys as $key) {
			$this->mergeCells[$key] = $key;
		}

		$holdRowDimensions = $this->removeRowDimensions($row, $numberOfRows);
		$highestRow = $this->getHighestDataRow();
		$removedRowsCounter = 0;

		for ($r = 0; $r < $numberOfRows; ++$r) {
			if ($row + $r <= $highestRow) {
				$this->cellCollection->removeRow($row + $r);
				++$removedRowsCounter;
			}
		}

		$objReferenceHelper = ReferenceHelper::getInstance();
		$objReferenceHelper->insertNewBefore('A' . ($row + $numberOfRows), 0, -$numberOfRows, $this);
		for ($r = 0; $r < $removedRowsCounter; ++$r) {
			$this->cellCollection->removeRow($highestRow);
			--$highestRow;
		}

		$this->rowDimensions = $holdRowDimensions;
		$this->cachedHighestRow = $newHighestRow;

		return $this;
	}

	/** @return RowDimension[] */
	private function removeRowDimensions(int $row, int $numberOfRows): array
	{
		$highRow = $row + $numberOfRows - 1;
		$holdRowDimensions = [];
		foreach ($this->rowDimensions as $rowDimension) {
			$num = $rowDimension->getRowIndex();
			if ($num < $row) {
				$holdRowDimensions[$num] = $rowDimension;
			} elseif ($num > $highRow) {
				$num -= $numberOfRows;
				$cloneDimension = clone $rowDimension;
				$cloneDimension->setRowIndex($num);
				$holdRowDimensions[$num] = $cloneDimension;
			}
		}

		return $holdRowDimensions;
	}

	/**
	 * Remove a column, updating all possible related data.
	 *
	 * @param string $column Remove columns starting with this column name, eg: 'A'
	 * @param int $numberOfColumns Number of columns to remove
	 *
	 * @return $this
	 */
	public function removeColumn(string $column, int $numberOfColumns = 1)
	{
		if (is_numeric($column)) {
			throw new Exception('Column references should not be numeric.');
		}
		$startColumnInt = Coordinate::columnIndexFromString($column);
		if ($numberOfColumns === 0) {
			return $this;
		}
		if ($numberOfColumns < 0) {
			$newStartColumnInt = max(1, $startColumnInt + $numberOfColumns + 1);
			$numberOfColumns = $startColumnInt - $newStartColumnInt + 1;
			$startColumnInt = $newStartColumnInt;
			$column = Coordinate::stringFromColumnIndex($startColumnInt);
		}
		$newHighestColumn = $this->cachedHighestColumn;
		if ($newHighestColumn >= $startColumnInt) {
			$newHighestColumn = max($startColumnInt - 1, $this->cachedHighestColumn - $numberOfColumns);
		}
		$endColumnInt = $startColumnInt + $numberOfColumns - 1;
		$removeKeys = [];
		$addKeys = [];
		foreach ($this->mergeCells as $key => $value) {
			if (
				Preg::isMatch(
					'/^([a-z]{1,3})(\d+):([a-z]{1,3})(\d+)/i',
					$key,
					$matches
				)
			) {
				$startMergeInt = Coordinate::columnIndexFromString($matches[1]);
				$endMergeInt = Coordinate::columnIndexFromString($matches[3]);
				if ($startMergeInt >= $startColumnInt) {
					if ($startMergeInt <= $endColumnInt) {
						$removeKeys[] = $key;
					}
				} elseif ($endMergeInt >= $startColumnInt) {
					if ($endMergeInt <= $endColumnInt) {
						$temp = Coordinate::columnIndexFromString($matches[3]) - 1;
						$temp2 = Coordinate::stringFromColumnIndex($temp);
						$removeKeys[] = $key;
						if ($temp2 !== $matches[1]) {
							$temp3 = $matches[1] . $matches[2] . ':' . $temp2 . $matches[4];
							$addKeys[] = $temp3;
						}
					}
				}
			}
		}
		foreach ($removeKeys as $key) {
			unset($this->mergeCells[$key]);
		}
		foreach ($addKeys as $key) {
			$this->mergeCells[$key] = $key;
		}

		$highestColumn = $this->getHighestDataColumn();
		$highestColumnIndex = Coordinate::columnIndexFromString($highestColumn);
		$pColumnIndex = Coordinate::columnIndexFromString($column);

		$holdColumnDimensions = $this->removeColumnDimensions($pColumnIndex, $numberOfColumns);

		$column = Coordinate::stringFromColumnIndex($pColumnIndex + $numberOfColumns);
		$objReferenceHelper = ReferenceHelper::getInstance();
		$objReferenceHelper->insertNewBefore($column . '1', -$numberOfColumns, 0, $this);

		$this->columnDimensions = $holdColumnDimensions;

		if ($pColumnIndex > $highestColumnIndex) {
			$this->cachedHighestColumn = $newHighestColumn;

			return $this;
		}

		$maxPossibleColumnsToBeRemoved = $highestColumnIndex - $pColumnIndex + 1;

		for ($c = 0, $n = min($maxPossibleColumnsToBeRemoved, $numberOfColumns); $c < $n; ++$c) {
			$this->cellCollection->removeColumn($highestColumn);
			$highestColumn = Coordinate::stringFromColumnIndex(Coordinate::columnIndexFromString($highestColumn) - 1);
		}
		$this->cachedHighestColumn = $newHighestColumn;

		$this->garbageCollect();

		return $this;
	}

	/** @return ColumnDimension[] */
	private function removeColumnDimensions(int $pColumnIndex, int $numberOfColumns): array
	{
		$highCol = $pColumnIndex + $numberOfColumns - 1;
		$holdColumnDimensions = [];
		foreach ($this->columnDimensions as $columnDimension) {
			$num = $columnDimension->getColumnNumeric();
			if ($num < $pColumnIndex) {
				$str = $columnDimension->getColumnIndex();
				$holdColumnDimensions[$str] = $columnDimension;
			} elseif ($num > $highCol) {
				$cloneDimension = clone $columnDimension;
				$cloneDimension->setColumnNumeric($num - $numberOfColumns);
				$str = $cloneDimension->getColumnIndex();
				$holdColumnDimensions[$str] = $cloneDimension;
			}
		}

		return $holdColumnDimensions;
	}

	/**
	 * Remove a column, updating all possible related data.
	 *
	 * @param int $columnIndex Remove starting with this column Index (numeric column coordinate)
	 * @param int $numColumns Number of columns to remove
	 *
	 * @return $this
	 */
	public function removeColumnByIndex(int $columnIndex, int $numColumns = 1)
	{
		if ($columnIndex >= 1) {
			return $this->removeColumn(Coordinate::stringFromColumnIndex($columnIndex), $numColumns);
		}

		throw new Exception('Columns to be deleted should at least start from column A (1)');
	}

	/**
	 * Show gridlines?
	 */
	public function getShowGridlines(): bool
	{
		return $this->showGridlines;
	}

	/**
	 * Set show gridlines.
	 *
	 * @param bool $showGridLines Show gridlines (true/false)
	 *
	 * @return $this
	 */
	public function setShowGridlines(bool $showGridLines): self
	{
		$this->showGridlines = $showGridLines;

		return $this;
	}

	/**
	 * Print gridlines?
	 */
	public function getPrintGridlines(): bool
	{
		return $this->printGridlines;
	}

	/**
	 * Set print gridlines.
	 *
	 * @param bool $printGridLines Print gridlines (true/false)
	 *
	 * @return $this
	 */
	public function setPrintGridlines(bool $printGridLines): self
	{
		$this->printGridlines = $printGridLines;

		return $this;
	}

	/**
	 * Show row and column headers?
	 */
	public function getShowRowColHeaders(): bool
	{
		return $this->showRowColHeaders;
	}

	/**
	 * Set show row and column headers.
	 *
	 * @param bool $showRowColHeaders Show row and column headers (true/false)
	 *
	 * @return $this
	 */
	public function setShowRowColHeaders(bool $showRowColHeaders): self
	{
		$this->showRowColHeaders = $showRowColHeaders;

		return $this;
	}

	/**
	 * Show summary below? (Row/Column outlining).
	 */
	public function getShowSummaryBelow(): bool
	{
		return $this->showSummaryBelow;
	}

	/**
	 * Set show summary below.
	 *
	 * @param bool $showSummaryBelow Show summary below (true/false)
	 *
	 * @return $this
	 */
	public function setShowSummaryBelow(bool $showSummaryBelow): self
	{
		$this->showSummaryBelow = $showSummaryBelow;

		return $this;
	}

	/**
	 * Show summary right? (Row/Column outlining).
	 */
	public function getShowSummaryRight(): bool
	{
		return $this->showSummaryRight;
	}

	/**
	 * Set show summary right.
	 *
	 * @param bool $showSummaryRight Show summary right (true/false)
	 *
	 * @return $this
	 */
	public function setShowSummaryRight(bool $showSummaryRight): self
	{
		$this->showSummaryRight = $showSummaryRight;

		return $this;
	}

	/**
	 * Get comments.
	 *
	 * @return Comment[]
	 */
	public function getComments(): array
	{
		return $this->comments;
	}

	/**
	 * Set comments array for the entire sheet.
	 *
	 * @param Comment[] $comments
	 *
	 * @return $this
	 */
	public function setComments(array $comments): self
	{
		$this->comments = $comments;

		return $this;
	}

	/**
	 * Remove comment from cell.
	 *
	 * @param array{0: int, 1: int}|CellAddress|string $cellCoordinate Coordinate of the cell as a string, eg: 'C5';
	 *               or as an array of [$columnIndex, $row] (e.g. [3, 5]), or a CellAddress object.
	 *
	 * @return $this
	 */
	public function removeComment($cellCoordinate): self
	{
		$cellAddress = Functions::trimSheetFromCellReference(Validations::validateCellAddress($cellCoordinate));

		if (Coordinate::coordinateIsRange($cellAddress)) {
			throw new Exception('Cell coordinate string can not be a range of cells.');
		} elseif (str_contains($cellAddress, '$')) {
			throw new Exception('Cell coordinate string must not be absolute.');
		} elseif ($cellAddress == '') {
			throw new Exception('Cell coordinate can not be zero-length string.');
		}
		// Check if we have a comment for this cell and delete it
		if (isset($this->comments[$cellAddress])) {
			unset($this->comments[$cellAddress]);
		}

		return $this;
	}

	/**
	 * Get comment for cell.
	 *
	 * @param array{0: int, 1: int}|CellAddress|string $cellCoordinate Coordinate of the cell as a string, eg: 'C5';
	 *               or as an array of [$columnIndex, $row] (e.g. [3, 5]), or a CellAddress object.
	 */
	public function getComment($cellCoordinate, bool $attachNew = true): Comment
	{
		$cellAddress = Functions::trimSheetFromCellReference(Validations::validateCellAddress($cellCoordinate));

		if (Coordinate::coordinateIsRange($cellAddress)) {
			throw new Exception('Cell coordinate string can not be a range of cells.');
		} elseif (str_contains($cellAddress, '$')) {
			throw new Exception('Cell coordinate string must not be absolute.');
		} elseif ($cellAddress == '') {
			throw new Exception('Cell coordinate can not be zero-length string.');
		}

		// Check if we already have a comment for this cell.
		if (isset($this->comments[$cellAddress])) {
			return $this->comments[$cellAddress];
		}

		// If not, create a new comment.
		$newComment = new Comment();
		if ($attachNew) {
			$this->comments[$cellAddress] = $newComment;
		}

		return $newComment;
	}

	/**
	 * Get active cell.
	 *
	 * @return string Example: 'A1'
	 */
	public function getActiveCell(): string
	{
		return $this->activeCell;
	}

	/**
	 * Get selected cells.
	 */
	public function getSelectedCells(): string
	{
		return $this->selectedCells;
	}

	/**
	 * Selected cell.
	 *
	 * @param string $coordinate Cell (i.e. A1)
	 *
	 * @return $this
	 */
	public function setSelectedCell(string $coordinate)
	{
		return $this->setSelectedCells($coordinate);
	}

	/**
	 * Select a range of cells.
	 *
	 * @param AddressRange<CellAddress>|AddressRange<int>|AddressRange<string>|array{0: int, 1: int, 2: int, 3: int}|array{0: int, 1: int}|CellAddress|int|string $coordinate A simple string containing a Cell range like 'A1:E10'
	 *              or passing in an array of [$fromColumnIndex, $fromRow, $toColumnIndex, $toRow] (e.g. [3, 5, 6, 8]),
	 *              or a CellAddress or AddressRange object.
	 *
	 * @return $this
	 */
	public function setSelectedCells($coordinate)
	{
		if (is_string($coordinate)) {
			$coordinate = Validations::definedNameToCoordinate($coordinate, $this);
		}
		$coordinate = Validations::validateCellOrCellRange($coordinate);

		if (Coordinate::coordinateIsRange($coordinate)) {
			[$first] = Coordinate::splitRange($coordinate);
			$this->activeCell = $first[0];
		} else {
			$this->activeCell = $coordinate;
		}
		$this->selectedCells = $coordinate;
		$this->setSelectedCellsActivePane();

		return $this;
	}

	private function setSelectedCellsActivePane(): void
	{
		if (!empty($this->freezePane)) {
			$coordinateC = Coordinate::indexesFromString($this->freezePane);
			$coordinateT = Coordinate::indexesFromString($this->activeCell);
			if ($coordinateC[0] === 1) {
				$activePane = ($coordinateT[1] <= $coordinateC[1]) ? 'topLeft' : 'bottomLeft';
			} elseif ($coordinateC[1] === 1) {
				$activePane = ($coordinateT[0] <= $coordinateC[0]) ? 'topLeft' : 'topRight';
			} elseif ($coordinateT[1] <= $coordinateC[1]) {
				$activePane = ($coordinateT[0] <= $coordinateC[0]) ? 'topLeft' : 'topRight';
			} else {
				$activePane = ($coordinateT[0] <= $coordinateC[0]) ? 'bottomLeft' : 'bottomRight';
			}
			$this->setActivePane($activePane);
			$this->panes[$activePane] = new Pane($activePane, $this->selectedCells, $this->activeCell);
		}
	}

	/**
	 * Get right-to-left.
	 */
	public function getRightToLeft(): bool
	{
		return $this->rightToLeft;
	}

	/**
	 * Set right-to-left.
	 *
	 * @param bool $value Right-to-left true/false
	 *
	 * @return $this
	 */
	public function setRightToLeft(bool $value)
	{
		$this->rightToLeft = $value;

		return $this;
	}

	/**
	 * Fill worksheet from values in array.
	 *
	 * @param mixed[]|mixed[][] $source Source array
	 * @param mixed $nullValue Value in source array that stands for blank cell
	 * @param string $startCell Insert array starting from this cell address as the top left coordinate
	 * @param bool $strictNullComparison Apply strict comparison when testing for null values in the array
	 *
	 * @return $this
	 */
	public function fromArray(array $source, $nullValue = null, string $startCell = 'A1', bool $strictNullComparison = false)
	{
		//    Convert a 1-D array to 2-D (for ease of looping)
		if (!is_array(end($source))) {
			$source = [$source];
		}
		/** @var mixed[][] $source */

		// start coordinate
		[$startColumn, $startRow] = Coordinate::coordinateFromString($startCell);
		$startRow = (int) $startRow;

		// Loop through $source
		if ($strictNullComparison) {
			foreach ($source as $rowData) {
				/** @var string */
				$currentColumn = $startColumn;
				foreach ($rowData as $cellValue) {
					if ($cellValue !== $nullValue) {
						$this->getCell($currentColumn . $startRow)->setValue($cellValue);
					}
					StringHelper::stringIncrement($currentColumn);
				}
				++$startRow;
			}
		} else {
			foreach ($source as $rowData) {
				$currentColumn = $startColumn;
				foreach ($rowData as $cellValue) {
					if ($cellValue != $nullValue) {
						$this->getCell($currentColumn . $startRow)->setValue($cellValue);
					}
					StringHelper::stringIncrement($currentColumn);
				}
				++$startRow;
			}
		}

		return $this;
	}

	/**
				 * @param bool $calculateFormulas Whether to calculate cell's value if it is a formula.
				 * @param mixed $nullValue value to use when null
				 * @param bool $formatData Whether to format data according to cell's style.
				 * @param bool $lessFloatPrecision If true, formatting unstyled floats will convert them to a more human-friendly but less computationally accurate value
				 * @param bool $oldCalculatedValue If calculateFormulas is false and this is true, use oldCalculatedFormula instead.
				 *
				 * @throws Exception
				 * @throws \TablePress\PhpOffice\PhpSpreadsheet\Calculation\Exception
				 * @return mixed
				 */
				protected function cellToArray(Cell $cell, bool $calculateFormulas, bool $formatData, $nullValue, bool $lessFloatPrecision = false, $oldCalculatedValue = false)
	{
		$returnValue = $nullValue;

		if ($cell->getValue() !== null) {
			if ($cell->getValue() instanceof RichText) {
				$returnValue = $cell->getValue()->getPlainText();
			} elseif ($calculateFormulas) {
				$returnValue = $cell->getCalculatedValue();
			} elseif ($oldCalculatedValue && ($cell->getDataType() === DataType::TYPE_FORMULA)) {
				$returnValue = $cell->getOldCalculatedValue() ?? $cell->getValue();
			} else {
				$returnValue = $cell->getValue();
			}

			if ($formatData) {
				$style = $this->getParentOrThrow()->getCellXfByIndex($cell->getXfIndex());
				/** @var null|bool|float|int|RichText|string */
				$returnValuex = $returnValue;
				$returnValue = NumberFormat::toFormattedString($returnValuex, $style->getNumberFormat()->getFormatCode() ?? NumberFormat::FORMAT_GENERAL, null, $lessFloatPrecision);
			}
		}

		return $returnValue;
	}

	/**
				 * Create array from a range of cells.
				 *
				 * @param mixed $nullValue Value returned in the array entry if a cell doesn't exist
				 * @param bool $calculateFormulas Should formulas be calculated?
				 * @param bool $formatData Should formatting be applied to cell values?
				 * @param bool $returnCellRef False - Return a simple array of rows and columns indexed by number counting from zero
				 *                             True - Return rows and columns indexed by their actual row and column IDs
				 * @param bool $ignoreHidden False - Return values for rows/columns even if they are defined as hidden.
				 *                            True - Don't return values for rows/columns that are defined as hidden.
				 * @param bool $reduceArrays If true and result is a formula which evaluates to an array, reduce it to the top leftmost value.
				 * @param bool $lessFloatPrecision If true, formatting unstyled floats will convert them to a more human-friendly but less computationally accurate value
				 * @param bool $oldCalculatedValue If calculateFormulas is false and this is true, use oldCalculatedFormula instead.
				 *
				 * @return mixed[][]
				 */
				public function rangeToArray(
		string $range,
		$nullValue = null,
		bool $calculateFormulas = true,
		bool $formatData = true,
		bool $returnCellRef = false,
		bool $ignoreHidden = false,
		bool $reduceArrays = false,
		bool $lessFloatPrecision = false,
		bool $oldCalculatedValue = false
	): array {
		$returnValue = [];

		// Loop through rows
		foreach ($this->rangeToArrayYieldRows($range, $nullValue, $calculateFormulas, $formatData, $returnCellRef, $ignoreHidden, $reduceArrays, $lessFloatPrecision, $oldCalculatedValue) as $rowRef => $rowArray) {
			/** @var int $rowRef */
			$returnValue[$rowRef] = $rowArray;
		}

		// Return
		return $returnValue;
	}

	/**
				 * Create array from a multiple ranges of cells. (such as A1:A3,A15,B17:C17).
				 *
				 * @param mixed $nullValue Value returned in the array entry if a cell doesn't exist
				 * @param bool $calculateFormulas Should formulas be calculated?
				 * @param bool $formatData Should formatting be applied to cell values?
				 * @param bool $returnCellRef False - Return a simple array of rows and columns indexed by number counting from zero
				 *                             True - Return rows and columns indexed by their actual row and column IDs
				 * @param bool $ignoreHidden False - Return values for rows/columns even if they are defined as hidden.
				 *                            True - Don't return values for rows/columns that are defined as hidden.
				 * @param bool $reduceArrays If true and result is a formula which evaluates to an array, reduce it to the top leftmost value.
				 * @param bool $lessFloatPrecision If true, formatting unstyled floats will convert them to a more human-friendly but less computationally accurate value
				 * @param bool $oldCalculatedValue If calculateFormulas is false and this is true, use oldCalculatedFormula instead.
				 *
				 * @return mixed[][]
				 */
				public function rangesToArray(
		string $ranges,
		$nullValue = null,
		bool $calculateFormulas = true,
		bool $formatData = true,
		bool $returnCellRef = false,
		bool $ignoreHidden = false,
		bool $reduceArrays = false,
		bool $lessFloatPrecision = false,
		bool $oldCalculatedValue = false
	): array {
		$returnValue = [];

		$parts = explode(',', $ranges);
		foreach ($parts as $part) {
			// Loop through rows
			foreach ($this->rangeToArrayYieldRows($part, $nullValue, $calculateFormulas, $formatData, $returnCellRef, $ignoreHidden, $reduceArrays, $lessFloatPrecision, $oldCalculatedValue) as $rowRef => $rowArray) {
				/** @var int $rowRef */
				$returnValue[$rowRef] = $rowArray;
			}
		}

		// Return
		return $returnValue;
	}

	/**
				 * Create array from a range of cells, yielding each row in turn.
				 *
				 * @param mixed $nullValue Value returned in the array entry if a cell doesn't exist
				 * @param bool $calculateFormulas Should formulas be calculated?
				 * @param bool $formatData Should formatting be applied to cell values?
				 * @param bool $returnCellRef False - Return a simple array of rows and columns indexed by number counting from zero
				 *                             True - Return rows and columns indexed by their actual row and column IDs
				 * @param bool $ignoreHidden False - Return values for rows/columns even if they are defined as hidden.
				 *                            True - Don't return values for rows/columns that are defined as hidden.
				 * @param bool $reduceArrays If true and result is a formula which evaluates to an array, reduce it to the top leftmost value.
				 * @param bool $lessFloatPrecision If true, formatting unstyled floats will convert them to a more human-friendly but less computationally accurate value
				 * @param bool $oldCalculatedValue If calculateFormulas is false and this is true, use oldCalculatedFormula instead.
				 *
				 * @return Generator<array<mixed>>
				 */
				public function rangeToArrayYieldRows(
		string $range,
		$nullValue = null,
		bool $calculateFormulas = true,
		bool $formatData = true,
		bool $returnCellRef = false,
		bool $ignoreHidden = false,
		bool $reduceArrays = false,
		bool $lessFloatPrecision = false,
		bool $oldCalculatedValue = false
	) {
		$range = Validations::validateCellOrCellRange($range);

		//    Identify the range that we need to extract from the worksheet
		[$rangeStart, $rangeEnd] = Coordinate::rangeBoundaries($range);
		$minCol = Coordinate::stringFromColumnIndex($rangeStart[0]);
		$minRow = $rangeStart[1];
		$maxCol = Coordinate::stringFromColumnIndex($rangeEnd[0]);
		$maxRow = $rangeEnd[1];
		$minColInt = $rangeStart[0];
		$maxColInt = $rangeEnd[0];

		StringHelper::stringIncrement($maxCol);
		/** @var array<string, bool> */
		$hiddenColumns = [];
		$nullRow = $this->buildNullRow($nullValue, $minCol, $maxCol, $returnCellRef, $ignoreHidden, $hiddenColumns);
		$hideColumns = !empty($hiddenColumns);

		$keys = $this->cellCollection->getSortedCoordinatesInt();
		$keyIndex = 0;
		$keysCount = count($keys);
		// Loop through rows
		for ($row = $minRow; $row <= $maxRow; ++$row) {
			if (($ignoreHidden === true) && ($this->isRowVisible($row) === false)) {
				continue;
			}
			$rowRef = $returnCellRef ? $row : ($row - $minRow);
			$returnValue = $nullRow;

			$index = ($row - 1) * AddressRange::MAX_COLUMN_INT + 1;
			$indexPlus = $index + AddressRange::MAX_COLUMN_INT - 1;

			// Binary search to quickly approach the correct index
			$keyIndex = intdiv($keysCount, 2);
			$boundLow = 0;
			$boundHigh = $keysCount - 1;
			while ($boundLow <= $boundHigh) {
				$keyIndex = intdiv($boundLow + $boundHigh, 2);
				if ($keys[$keyIndex] < $index) {
					$boundLow = $keyIndex + 1;
				} elseif ($keys[$keyIndex] > $index) {
					$boundHigh = $keyIndex - 1;
				} else {
					break;
				}
			}

			// Realign to the proper index value
			while ($keyIndex > 0 && $keys[$keyIndex] > $index) {
				--$keyIndex;
			}
			while ($keyIndex < $keysCount && $keys[$keyIndex] < $index) {
				++$keyIndex;
			}

			while ($keyIndex < $keysCount && $keys[$keyIndex] <= $indexPlus) {
				$key = $keys[$keyIndex];
				$thisRow = intdiv($key - 1, AddressRange::MAX_COLUMN_INT) + 1;
				$thisCol = ($key % AddressRange::MAX_COLUMN_INT) ?: AddressRange::MAX_COLUMN_INT;
				if ($thisCol >= $minColInt && $thisCol <= $maxColInt) {
					$col = Coordinate::stringFromColumnIndex($thisCol);
					if ($hideColumns === false || !isset($hiddenColumns[$col])) {
						$columnRef = $returnCellRef ? $col : ($thisCol - $minColInt);
						$cell = $this->cellCollection->get("{$col}{$thisRow}");
						if ($cell !== null) {
							$value = $this->cellToArray($cell, $calculateFormulas, $formatData, $nullValue, $lessFloatPrecision, $oldCalculatedValue);
							if ($reduceArrays) {
								while (is_array($value)) {
									$value = array_shift($value);
								}
							}
							if ($value !== $nullValue) {
								$returnValue[$columnRef] = $value;
							}
						}
					}
				}
				++$keyIndex;
			}

			yield $rowRef => $returnValue;
		}
	}

	/**
	 * Prepare a row data filled with null values to deduplicate the memory areas for empty rows.
	 *
	 * @param mixed $nullValue Value returned in the array entry if a cell doesn't exist
	 * @param string $minCol Start column of the range
	 * @param string $maxCol End column of the range
	 * @param bool $returnCellRef False - Return a simple array of rows and columns indexed by number counting from zero
	 *                              True - Return rows and columns indexed by their actual row and column IDs
	 * @param bool $ignoreHidden False - Return values for rows/columns even if they are defined as hidden.
	 *                             True - Don't return values for rows/columns that are defined as hidden.
	 * @param array<string, bool> $hiddenColumns
	 *
	 * @return mixed[]
	 */
	private function buildNullRow(
		$nullValue,
		string $minCol,
		string $maxCol,
		bool $returnCellRef,
		bool $ignoreHidden,
		array &$hiddenColumns
	): array {
		$nullRow = [];
		$c = -1;
		for ($col = $minCol; $col !== $maxCol; StringHelper::stringIncrement($col)) {
			if ($ignoreHidden === true && $this->columnDimensionExists($col) && $this->getColumnDimension($col)->getVisible() === false) {
				$hiddenColumns[$col] = true;
			} else {
				$columnRef = $returnCellRef ? $col : ++$c;
				$nullRow[$columnRef] = $nullValue;
			}
		}

		return $nullRow;
	}

	private function validateNamedRange(string $definedName, bool $returnNullIfInvalid = false): ?DefinedName
	{
		$namedRange = DefinedName::resolveName($definedName, $this);
		if ($namedRange === null) {
			if ($returnNullIfInvalid) {
				return null;
			}

			throw new Exception('Named Range ' . $definedName . ' does not exist.');
		}

		if ($namedRange->isFormula()) {
			if ($returnNullIfInvalid) {
				return null;
			}

			throw new Exception('Defined Named ' . $definedName . ' is a formula, not a range or cell.');
		}

		if ($namedRange->getLocalOnly()) {
			$worksheet = $namedRange->getWorksheet();
			if ($worksheet === null || $this !== $worksheet) {
				if ($returnNullIfInvalid) {
					return null;
				}

				throw new Exception(
					'Named range ' . $definedName . ' is not accessible from within sheet ' . $this->getTitle()
				);
			}
		}

		return $namedRange;
	}

	/**
				 * Create array from a range of cells.
				 *
				 * @param string $definedName The Named Range that should be returned
				 * @param mixed $nullValue Value returned in the array entry if a cell doesn't exist
				 * @param bool $calculateFormulas Should formulas be calculated?
				 * @param bool $formatData Should formatting be applied to cell values?
				 * @param bool $returnCellRef False - Return a simple array of rows and columns indexed by number counting from zero
				 *                             True - Return rows and columns indexed by their actual row and column IDs
				 * @param bool $ignoreHidden False - Return values for rows/columns even if they are defined as hidden.
				 *                            True - Don't return values for rows/columns that are defined as hidden.
				 * @param bool $reduceArrays If true and result is a formula which evaluates to an array, reduce it to the top leftmost value.
				 * @param bool $lessFloatPrecision If true, formatting unstyled floats will convert them to a more human-friendly but less computationally accurate value
				 * @param bool $oldCalculatedValue If calculateFormulas is false and this is true, use oldCalculatedFormula instead.
				 *
				 * @return mixed[][]
				 */
				public function namedRangeToArray(
		string $definedName,
		$nullValue = null,
		bool $calculateFormulas = true,
		bool $formatData = true,
		bool $returnCellRef = false,
		bool $ignoreHidden = false,
		bool $reduceArrays = false,
		bool $lessFloatPrecision = false,
		bool $oldCalculatedValue = false
	): array {
		$retVal = [];
		$namedRange = $this->validateNamedRange($definedName);
		if ($namedRange !== null) {
			$cellRange = ltrim((string) substr($namedRange->getValue(), (int) strrpos($namedRange->getValue(), '!')), '!');
			$cellRange = str_replace('$', '', $cellRange);
			$workSheet = $namedRange->getWorksheet();
			if ($workSheet !== null) {
				$retVal = $workSheet->rangeToArray($cellRange, $nullValue, $calculateFormulas, $formatData, $returnCellRef, $ignoreHidden, $reduceArrays, $lessFloatPrecision, $oldCalculatedValue);
			}
		}

		return $retVal;
	}

	/**
				 * Create array from worksheet.
				 *
				 * @param mixed $nullValue Value returned in the array entry if a cell doesn't exist
				 * @param bool $calculateFormulas Should formulas be calculated?
				 * @param bool $formatData Should formatting be applied to cell values?
				 * @param bool $returnCellRef False - Return a simple array of rows and columns indexed by number counting from zero
				 *                             True - Return rows and columns indexed by their actual row and column IDs
				 * @param bool $ignoreHidden False - Return values for rows/columns even if they are defined as hidden.
				 *                            True - Don't return values for rows/columns that are defined as hidden.
				 * @param bool $reduceArrays If true and result is a formula which evaluates to an array, reduce it to the top leftmost value.
				 * @param bool $lessFloatPrecision If true, formatting unstyled floats will convert them to a more human-friendly but less computationally accurate value
				 * @param bool $oldCalculatedValue If calculateFormulas is false and this is true, use oldCalculatedFormula instead.
				 *
				 * @return mixed[][]
				 */
				public function toArray(
		$nullValue = null,
		bool $calculateFormulas = true,
		bool $formatData = true,
		bool $returnCellRef = false,
		bool $ignoreHidden = false,
		bool $reduceArrays = false,
		bool $lessFloatPrecision = false,
		bool $oldCalculatedValue = false
	): array {
		// Garbage collect...
		$this->garbageCollect();
		$this->calculateArrays($calculateFormulas);

		//    Identify the range that we need to extract from the worksheet
		$maxCol = $this->getHighestColumn();
		$maxRow = $this->getHighestRow();

		// Return
		return $this->rangeToArray("A1:{$maxCol}{$maxRow}", $nullValue, $calculateFormulas, $formatData, $returnCellRef, $ignoreHidden, $reduceArrays, $lessFloatPrecision, $oldCalculatedValue);
	}

	/**
	 * Get row iterator.
	 *
	 * @param int $startRow The row number at which to start iterating
	 * @param ?int $endRow The row number at which to stop iterating
	 */
	public function getRowIterator(int $startRow = 1, ?int $endRow = null): RowIterator
	{
		return new RowIterator($this, $startRow, $endRow);
	}

	/**
	 * Get column iterator.
	 *
	 * @param string $startColumn The column address at which to start iterating
	 * @param ?string $endColumn The column address at which to stop iterating
	 */
	public function getColumnIterator(string $startColumn = 'A', ?string $endColumn = null): ColumnIterator
	{
		return new ColumnIterator($this, $startColumn, $endColumn);
	}

	/**
	 * Run PhpSpreadsheet garbage collector.
	 *
	 * @return $this
	 */
	public function garbageCollect()
	{
		// Flush cache
		$this->cellCollection->get('A1');

		// Lookup highest column and highest row if cells are cleaned
		$colRow = $this->cellCollection->getHighestRowAndColumn();
		$highestRow = $colRow['row'];
		$highestColumn = Coordinate::columnIndexFromString($colRow['column']);

		// Loop through column dimensions
		foreach ($this->columnDimensions as $dimension) {
			$highestColumn = max($highestColumn, Coordinate::columnIndexFromString($dimension->getColumnIndex()));
		}

		// Loop through row dimensions
		foreach ($this->rowDimensions as $dimension) {
			$highestRow = max($highestRow, $dimension->getRowIndex());
		}

		// Cache values
		$this->cachedHighestColumn = max(1, $highestColumn);
		/** @var int $highestRow */
		$this->cachedHighestRow = $highestRow;

		// Return
		return $this;
	}

	/**
	 * @deprecated 5.2.0 Serves no useful purpose. No replacement.
	 *
	 * @codeCoverageIgnore
	 */
	public function getHashInt(): int
	{
		return spl_object_id($this);
	}

	/**
	 * Extract worksheet title from range.
	 *
	 * Example: extractSheetTitle("testSheet!A1") ==> 'A1'
	 * Example: extractSheetTitle("testSheet!A1:C3") ==> 'A1:C3'
	 * Example: extractSheetTitle("'testSheet 1'!A1", true) ==> ['testSheet 1', 'A1'];
	 * Example: extractSheetTitle("'testSheet 1'!A1:C3", true) ==> ['testSheet 1', 'A1:C3'];
	 * Example: extractSheetTitle("A1", true) ==> ['', 'A1'];
	 * Example: extractSheetTitle("A1:C3", true) ==> ['', 'A1:C3']
	 *
	 * @param ?string $range Range to extract title from
	 * @param bool $returnRange Return range? (see example)
	 *
	 * @return ($range is non-empty-string ? ($returnRange is true ? array{0: string, 1: string} : string) : ($returnRange is true ? array{0: null, 1: null} : null))
	 */
	public static function extractSheetTitle(?string $range, bool $returnRange = false, bool $unapostrophize = false)
	{
		if (empty($range)) {
			return $returnRange ? [null, null] : null;
		}

		// Sheet title included?
		if (($sep = strrpos($range, '!')) === false) {
			return $returnRange ? ['', $range] : '';
		}

		if ($returnRange) {
			$title = (string) substr($range, 0, $sep);
			if ($unapostrophize) {
				$title = self::unApostrophizeTitle($title);
			}

			return [$title, (string) substr($range, $sep + 1)];
		}

		return (string) substr($range, $sep + 1);
	}

	public static function unApostrophizeTitle(?string $title): string
	{
		$title ??= '';
		if (str_starts_with($title, "'") && str_ends_with($title, "'")) {
			$title = str_replace("''", "'", (string) substr($title, 1, -1));
		}

		return $title;
	}

	/**
	 * Get hyperlink.
	 *
	 * @param string $cellCoordinate Cell coordinate to get hyperlink for, eg: 'A1'
	 */
	public function getHyperlink(string $cellCoordinate): Hyperlink
	{
		$this->getCell($cellCoordinate)->setHadHyperlink(true);
		// return hyperlink if we already have one
		if (isset($this->hyperlinkCollection[$cellCoordinate])) {
			return $this->hyperlinkCollection[$cellCoordinate];
		}

		// else create hyperlink
		$this->hyperlinkCollection[$cellCoordinate] = new Hyperlink();

		return $this->hyperlinkCollection[$cellCoordinate];
	}

	/**
	 * Set hyperlink.
	 *
	 * @param string $cellCoordinate Cell coordinate to insert hyperlink, eg: 'A1'
	 *
	 * @return $this
	 */
	public function setHyperlink(string $cellCoordinate, ?Hyperlink $hyperlink = null, bool $reset = true)
	{
		if ($hyperlink === null) {
			unset($this->hyperlinkCollection[$cellCoordinate]);
			if ($reset) {
				$this->getCell($cellCoordinate)
					->setHadHyperlink(false);
			}
		} else {
			$this->hyperlinkCollection[$cellCoordinate] = $hyperlink;
			$this->getCell($cellCoordinate)->setHadHyperlink(true);
		}

		return $this;
	}

	/**
	 * Hyperlink at a specific coordinate exists?
	 *
	 * @param string $coordinate eg: 'A1'
	 */
	public function hyperlinkExists(string $coordinate): bool
	{
		return isset($this->hyperlinkCollection[$coordinate]);
	}

	/**
	 * Get collection of hyperlinks.
	 *
	 * @return Hyperlink[]
	 */
	public function getHyperlinkCollection(): array
	{
		return $this->hyperlinkCollection;
	}

	/**
	 * Get data validation.
	 *
	 * @param string $cellCoordinate Cell coordinate to get data validation for, eg: 'A1'
	 */
	public function getDataValidation(string $cellCoordinate): DataValidation
	{
		// return data validation if we already have one
		if (isset($this->dataValidationCollection[$cellCoordinate])) {
			return $this->dataValidationCollection[$cellCoordinate];
		}

		// or if cell is part of a data validation range
		foreach ($this->dataValidationCollection as $key => $dataValidation) {
			$keyParts = explode(' ', $key);
			foreach ($keyParts as $keyPart) {
				if ($keyPart === $cellCoordinate) {
					return $dataValidation;
				}
				if (str_contains($keyPart, ':')) {
					if (Coordinate::coordinateIsInsideRange($keyPart, $cellCoordinate)) {
						return $dataValidation;
					}
				}
			}
		}

		// else create data validation
		$dataValidation = new DataValidation();
		$dataValidation->setSqref($cellCoordinate);
		$this->dataValidationCollection[$cellCoordinate] = $dataValidation;

		return $dataValidation;
	}

	/**
	 * Set data validation.
	 *
	 * @param string $cellCoordinate Cell coordinate to insert data validation, eg: 'A1'
	 *
	 * @return $this
	 */
	public function setDataValidation(string $cellCoordinate, ?DataValidation $dataValidation = null)
	{
		if ($dataValidation === null) {
			unset($this->dataValidationCollection[$cellCoordinate]);
		} else {
			$dataValidation->setSqref($cellCoordinate);
			$this->dataValidationCollection[$cellCoordinate] = $dataValidation;
		}

		return $this;
	}

	/**
	 * Data validation at a specific coordinate exists?
	 *
	 * @param string $coordinate eg: 'A1'
	 */
	public function dataValidationExists(string $coordinate): bool
	{
		if (isset($this->dataValidationCollection[$coordinate])) {
			return true;
		}
		foreach ($this->dataValidationCollection as $key => $dataValidation) {
			$keyParts = explode(' ', $key);
			foreach ($keyParts as $keyPart) {
				if ($keyPart === $coordinate) {
					return true;
				}
				if (str_contains($keyPart, ':')) {
					if (Coordinate::coordinateIsInsideRange($keyPart, $coordinate)) {
						return true;
					}
				}
			}
		}

		return false;
	}

	/**
	 * Get collection of data validations.
	 *
	 * @return DataValidation[]
	 */
	public function getDataValidationCollection(): array
	{
		$collectionCells = [];
		$collectionRanges = [];
		foreach ($this->dataValidationCollection as $key => $dataValidation) {
			if (Preg::isMatch('/[: ]/', $key)) {
				$collectionRanges[$key] = $dataValidation;
			} else {
				$collectionCells[$key] = $dataValidation;
			}
		}

		return array_merge($collectionCells, $collectionRanges);
	}

	/**
	 * Accepts a range, returning it as a range that falls within the current highest row and column of the worksheet.
	 *
	 * @return string Adjusted range value
	 */
	public function shrinkRangeToFit(string $range): string
	{
		$maxCol = $this->getHighestColumn();
		$maxRow = $this->getHighestRow();
		$maxCol = Coordinate::columnIndexFromString($maxCol);

		$rangeBlocks = explode(' ', $range);
		foreach ($rangeBlocks as &$rangeSet) {
			$rangeBoundaries = Coordinate::getRangeBoundaries($rangeSet);

			if (Coordinate::columnIndexFromString($rangeBoundaries[0][0]) > $maxCol) {
				$rangeBoundaries[0][0] = Coordinate::stringFromColumnIndex($maxCol);
			}
			if ($rangeBoundaries[0][1] > $maxRow) {
				$rangeBoundaries[0][1] = $maxRow;
			}
			if (Coordinate::columnIndexFromString($rangeBoundaries[1][0]) > $maxCol) {
				$rangeBoundaries[1][0] = Coordinate::stringFromColumnIndex($maxCol);
			}
			if ($rangeBoundaries[1][1] > $maxRow) {
				$rangeBoundaries[1][1] = $maxRow;
			}
			$rangeSet = $rangeBoundaries[0][0] . $rangeBoundaries[0][1] . ':' . $rangeBoundaries[1][0] . $rangeBoundaries[1][1];
		}
		unset($rangeSet);

		return implode(' ', $rangeBlocks);
	}

	/**
	 * Get tab color.
	 */
	public function getTabColor(): Color
	{
		if ($this->tabColor === null) {
			$this->tabColor = new Color();
		}

		return $this->tabColor;
	}

	/**
	 * Reset tab color.
	 *
	 * @return $this
	 */
	public function resetTabColor()
	{
		$this->tabColor = null;

		return $this;
	}

	/**
	 * Tab color set?
	 */
	public function isTabColorSet(): bool
	{
		return $this->tabColor !== null;
	}

	/**
				 * Copy worksheet (!= clone!).
				 * @return static
				 */
				public function copy()
	{
		return clone $this;
	}

	/**
	 * Returns a boolean true if the specified row contains no cells. By default, this means that no cell records
	 *          exist in the collection for this row. false will be returned otherwise.
	 *     This rule can be modified by passing a $definitionOfEmptyFlags value:
	 *          1 - CellIterator::TREAT_NULL_VALUE_AS_EMPTY_CELL If the only cells in the collection are null value
	 *                  cells, then the row will be considered empty.
	 *          2 - CellIterator::TREAT_EMPTY_STRING_AS_EMPTY_CELL If the only cells in the collection are empty
	 *                  string value cells, then the row will be considered empty.
	 *          3 - CellIterator::TREAT_NULL_VALUE_AS_EMPTY_CELL | CellIterator::TREAT_EMPTY_STRING_AS_EMPTY_CELL
	 *                  If the only cells in the collection are null value or empty string value cells, then the row
	 *                  will be considered empty.
	 *
	 * @param int $definitionOfEmptyFlags
	 *              Possible Flag Values are:
	 *                  CellIterator::TREAT_NULL_VALUE_AS_EMPTY_CELL
	 *                  CellIterator::TREAT_EMPTY_STRING_AS_EMPTY_CELL
	 */
	public function isEmptyRow(int $rowId, int $definitionOfEmptyFlags = 0): bool
	{
		try {
			$iterator = new RowIterator($this, $rowId, $rowId);
			$iterator->seek($rowId);
			$row = $iterator->current();
		} catch (Exception $exception) {
			return true;
		}

		return $row->isEmpty($definitionOfEmptyFlags);
	}

	/**
	 * Returns a boolean true if the specified column contains no cells. By default, this means that no cell records
	 *          exist in the collection for this column. false will be returned otherwise.
	 *     This rule can be modified by passing a $definitionOfEmptyFlags value:
	 *          1 - CellIterator::TREAT_NULL_VALUE_AS_EMPTY_CELL If the only cells in the collection are null value
	 *                  cells, then the column will be considered empty.
	 *          2 - CellIterator::TREAT_EMPTY_STRING_AS_EMPTY_CELL If the only cells in the collection are empty
	 *                  string value cells, then the column will be considered empty.
	 *          3 - CellIterator::TREAT_NULL_VALUE_AS_EMPTY_CELL | CellIterator::TREAT_EMPTY_STRING_AS_EMPTY_CELL
	 *                  If the only cells in the collection are null value or empty string value cells, then the column
	 *                  will be considered empty.
	 *
	 * @param int $definitionOfEmptyFlags
	 *              Possible Flag Values are:
	 *                  CellIterator::TREAT_NULL_VALUE_AS_EMPTY_CELL
	 *                  CellIterator::TREAT_EMPTY_STRING_AS_EMPTY_CELL
	 */
	public function isEmptyColumn(string $columnId, int $definitionOfEmptyFlags = 0): bool
	{
		try {
			$iterator = new ColumnIterator($this, $columnId, $columnId);
			$iterator->seek($columnId);
			$column = $iterator->current();
		} catch (Exception $exception) {
			return true;
		}

		return $column->isEmpty($definitionOfEmptyFlags);
	}

	/**
	 * Implement PHP __clone to create a deep clone, not just a shallow copy.
	 */
	public function __clone()
	{
		foreach (get_object_vars($this) as $key => $val) {
			if ($key == 'parent') {
				continue;
			}

			if (is_object($val) || (is_array($val))) {
				if ($key === 'cellCollection') {
					$newCollection = $this->cellCollection->cloneCellCollection($this);
					$this->cellCollection = $newCollection;
				} elseif ($key === 'drawingCollection') {
					$currentCollection = $this->drawingCollection;
					$this->drawingCollection = new ArrayObject();
					foreach ($currentCollection as $item) {
						$newDrawing = clone $item;
						$newDrawing->setWorksheet($this);
					}
				} elseif ($key === 'inCellDrawingCollection') {
					$currentCollection = $this->inCellDrawingCollection;
					$this->inCellDrawingCollection = new ArrayObject();
					foreach ($currentCollection as $item) {
						$newDrawing = clone $item;
						$newDrawing->setWorksheet($this);
					}
				} elseif ($key === 'tableCollection') {
					$currentCollection = $this->tableCollection;
					$this->tableCollection = new ArrayObject();
					foreach ($currentCollection as $item) {
						$newTable = clone $item;
						$newTable->setName($item->getName() . 'clone');
						$this->addTable($newTable);
					}
				} elseif ($key === 'chartCollection') {
					$currentCollection = $this->chartCollection;
					$this->chartCollection = new ArrayObject();
					foreach ($currentCollection as $item) {
						$newChart = clone $item;
						$this->addChart($newChart);
					}
				} elseif ($key === 'autoFilter') {
					$newAutoFilter = clone $this->autoFilter;
					$this->autoFilter = $newAutoFilter;
					$this->autoFilter->setParent($this);
				} else {
					$this->{$key} = unserialize(serialize($val));
				}
			}
		}
	}

	/**
	 * Define the code name of the sheet.
	 *
	 * @param string $codeName Same rule as Title minus space not allowed (but, like Excel, change
	 *                       silently space to underscore)
	 * @param bool $validate False to skip validation of new title. WARNING: This should only be set
	 *                       at parse time (by Readers), where titles can be assumed to be valid.
	 *
	 * @return $this
	 */
	public function setCodeName(string $codeName, bool $validate = true)
	{
		// Is this a 'rename' or not?
		if ($this->getCodeName() == $codeName) {
			return $this;
		}

		if ($validate) {
			$codeName = str_replace(' ', '_', $codeName); //Excel does this automatically without flinching, we are doing the same

			// Syntax check
			// throw an exception if not valid
			self::checkSheetCodeName($codeName);

			// We use the same code that setTitle to find a valid codeName else not using a space (Excel don't like) but a '_'

			if ($this->parent !== null) {
				// Is there already such sheet name?
				if ($this->parent->sheetCodeNameExists($codeName)) {
					// Use name, but append with lowest possible integer

					if (StringHelper::countCharacters($codeName) > 29) {
						$codeName = StringHelper::substring($codeName, 0, 29);
					}
					$i = 1;
					while ($this->getParentOrThrow()->sheetCodeNameExists($codeName . '_' . $i)) {
						++$i;
						if ($i == 10) {
							if (StringHelper::countCharacters($codeName) > 28) {
								$codeName = StringHelper::substring($codeName, 0, 28);
							}
						} elseif ($i == 100) {
							if (StringHelper::countCharacters($codeName) > 27) {
								$codeName = StringHelper::substring($codeName, 0, 27);
							}
						}
					}

					$codeName .= '_' . $i; // ok, we have a valid name
				}
			}
		}

		$this->codeName = $codeName;

		return $this;
	}

	/**
	 * Return the code name of the sheet.
	 */
	public function getCodeName(): ?string
	{
		return $this->codeName;
	}

	/**
	 * Sheet has a code name ?
	 */
	public function hasCodeName(): bool
	{
		return $this->codeName !== null;
	}

	public static function nameRequiresQuotes(string $sheetName): bool
	{
		return !Preg::isMatch(self::SHEET_NAME_REQUIRES_NO_QUOTES, $sheetName);
	}

	public function isRowVisible(int $row): bool
	{
		return !$this->rowDimensionExists($row) || $this->getRowDimension($row)->getVisible();
	}

	/**
	 * Same as Cell->isLocked, but without creating cell if it doesn't exist.
	 */
	public function isCellLocked(string $coordinate): bool
	{
		if ($this->getProtection()->getsheet() !== true) {
			return false;
		}
		if ($this->cellExists($coordinate)) {
			return $this->getCell($coordinate)->isLocked();
		}
		$spreadsheet = $this->parent;
		$xfIndex = $this->getXfIndex($coordinate);
		if ($spreadsheet === null || $xfIndex === null) {
			return true;
		}

		return $spreadsheet->getCellXfByIndex($xfIndex)->getProtection()->getLocked() !== StyleProtection::PROTECTION_UNPROTECTED;
	}

	/**
	 * Same as Cell->isHiddenOnFormulaBar, but without creating cell if it doesn't exist.
	 */
	public function isCellHiddenOnFormulaBar(string $coordinate): bool
	{
		if ($this->cellExists($coordinate)) {
			return $this->getCell($coordinate)->isHiddenOnFormulaBar();
		}

		// cell doesn't exist, therefore isn't a formula,
		// therefore isn't hidden on formula bar.
		return false;
	}

	private function getXfIndex(string $coordinate): ?int
	{
		[$column, $row] = Coordinate::coordinateFromString($coordinate);
		$row = (int) $row;
		$xfIndex = null;
		if ($this->rowDimensionExists($row)) {
			$xfIndex = $this->getRowDimension($row)->getXfIndex();
		}
		if ($xfIndex === null && $this->ColumnDimensionExists($column)) {
			$xfIndex = $this->getColumnDimension($column)->getXfIndex();
		}

		return $xfIndex;
	}

	private string $backgroundImage = '';

	private string $backgroundMime = '';

	private string $backgroundExtension = '';

	public function getBackgroundImage(): string
	{
		return $this->backgroundImage;
	}

	public function getBackgroundMime(): string
	{
		return $this->backgroundMime;
	}

	public function getBackgroundExtension(): string
	{
		return $this->backgroundExtension;
	}

	/**
	 * Set background image.
	 * Used on read/write for Xlsx.
	 * Used on write for Html.
	 *
	 * @param string $backgroundImage Image represented as a string, e.g. results of file_get_contents
	 */
	public function setBackgroundImage(string $backgroundImage): self
	{
		$imageArray = getimagesizefromstring($backgroundImage) ?: ['mime' => ''];
		$mime = $imageArray['mime'];
		if ($mime !== '') {
			$extension = explode('/', $mime);
			$extension = $extension[1];
			$this->backgroundImage = $backgroundImage;
			$this->backgroundMime = $mime;
			$this->backgroundExtension = $extension;
		}

		return $this;
	}

	/**
	 * Copy cells, adjusting relative cell references in formulas.
	 * Acts similarly to Excel "fill handle" feature.
	 *
	 * @param string $fromCell Single source cell, e.g. C3
	 * @param string $toCells Single cell or cell range, e.g. C4 or C4:C10
	 * @param bool $copyStyle Copy styles as well as values, defaults to true
	 */
	public function copyCells(string $fromCell, string $toCells, bool $copyStyle = true): void
	{
		$toArray = Coordinate::extractAllCellReferencesInRange($toCells);
		$valueString = $this->getCell($fromCell)->getValueString();
		/** @var mixed[][] */
		$style = $this->getStyle($fromCell)->exportArray();
		$fromIndexes = Coordinate::indexesFromString($fromCell);
		$referenceHelper = ReferenceHelper::getInstance();
		foreach ($toArray as $destination) {
			if ($destination !== $fromCell) {
				$toIndexes = Coordinate::indexesFromString($destination);
				$this->getCell($destination)->setValue($referenceHelper->updateFormulaReferences($valueString, 'A1', $toIndexes[0] - $fromIndexes[0], $toIndexes[1] - $fromIndexes[1]));
				if ($copyStyle) {
					$this->getCell($destination)->getStyle()->applyFromArray($style);
				}
			}
		}
	}

	public function calculateArrays(bool $preCalculateFormulas = true): void
	{
		if ($preCalculateFormulas && Calculation::getInstance($this->parent)->getInstanceArrayReturnType() === Calculation::RETURN_ARRAY_AS_ARRAY) {
			$keys = $this->cellCollection->getCoordinates();
			foreach ($keys as $key) {
				if ($this->getCell($key)->getDataType() === DataType::TYPE_FORMULA) {
					if (!Preg::isMatch(self::FUNCTION_LIKE_GROUPBY, $this->getCell($key)->getValueString())) {
						$this->getCell($key)->getCalculatedValue();
					}
				}
			}
		}
	}

	public function isCellInSpillRange(string $coordinate): bool
	{
		if (Calculation::getInstance($this->parent)->getInstanceArrayReturnType() !== Calculation::RETURN_ARRAY_AS_ARRAY) {
			return false;
		}
		$this->calculateArrays();
		$keys = $this->cellCollection->getCoordinates();
		foreach ($keys as $key) {
			$attributes = $this->getCell($key)->getFormulaAttributes();
			if (isset($attributes['ref'])) {
				if (Coordinate::coordinateIsInsideRange($attributes['ref'], $coordinate)) {
					// false for first cell in range, true otherwise
					return $coordinate !== $key;
				}
			}
		}

		return false;
	}

	/** @param mixed[][] $styleArray */
	public function applyStylesFromArray(string $coordinate, array $styleArray): bool
	{
		$spreadsheet = $this->parent;
		if ($spreadsheet === null) {
			return false;
		}
		$activeSheetIndex = $spreadsheet->getActiveSheetIndex();
		$originalSelected = $this->selectedCells;
		$this->getStyle($coordinate)->applyFromArray($styleArray);
		$this->setSelectedCells($originalSelected);
		if ($activeSheetIndex >= 0) {
			$spreadsheet->setActiveSheetIndex($activeSheetIndex);
		}

		return true;
	}

	public function copyFormula(string $fromCell, string $toCell): void
	{
		$formula = $this->getCell($fromCell)->getValue();
		$newFormula = $formula;
		if (is_string($formula) && $this->getCell($fromCell)->getDataType() === DataType::TYPE_FORMULA) {
			[$fromColInt, $fromRow] = Coordinate::indexesFromString($fromCell);
			[$toColInt, $toRow] = Coordinate::indexesFromString($toCell);
			$helper = ReferenceHelper::getInstance();
			$newFormula = $helper->updateFormulaReferences(
				$formula,
				'A1',
				$toColInt - $fromColInt,
				$toRow - $fromRow
			);
		}
		$this->setCellValue($toCell, $newFormula);
	}
}

```