Worksheet.php in Loft Data Grids 6.2

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vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007/Worksheet.php

<?php

/**
 * PHPExcel
 *
 * Copyright (c) 2006 - 2014 PHPExcel
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category   PHPExcel
 * @package	PHPExcel_Writer_Excel2007
 * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license	http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
 * @version	##VERSION##, ##DATE##
 */

/**
 * PHPExcel_Writer_Excel2007_Worksheet
 *
 * @category   PHPExcel
 * @package	PHPExcel_Writer_Excel2007
 * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
 */
class PHPExcel_Writer_Excel2007_Worksheet extends PHPExcel_Writer_Excel2007_WriterPart {

  /**
   * Write worksheet to XML format
   *
   * @param	PHPExcel_Worksheet		$pSheet
   * @param	string[]				$pStringTable
   * @param	boolean					$includeCharts	Flag indicating if we should write charts
   * @return	string					XML Output
   * @throws	PHPExcel_Writer_Exception
   */
  public function writeWorksheet($pSheet = null, $pStringTable = null, $includeCharts = FALSE) {
    if (!is_null($pSheet)) {

      // Create XML writer
      $objWriter = null;
      if ($this
        ->getParentWriter()
        ->getUseDiskCaching()) {
        $objWriter = new PHPExcel_Shared_XMLWriter(PHPExcel_Shared_XMLWriter::STORAGE_DISK, $this
          ->getParentWriter()
          ->getDiskCachingDirectory());
      }
      else {
        $objWriter = new PHPExcel_Shared_XMLWriter(PHPExcel_Shared_XMLWriter::STORAGE_MEMORY);
      }

      // XML header
      $objWriter
        ->startDocument('1.0', 'UTF-8', 'yes');

      // Worksheet
      $objWriter
        ->startElement('worksheet');
      $objWriter
        ->writeAttribute('xml:space', 'preserve');
      $objWriter
        ->writeAttribute('xmlns', 'http://schemas.openxmlformats.org/spreadsheetml/2006/main');
      $objWriter
        ->writeAttribute('xmlns:r', 'http://schemas.openxmlformats.org/officeDocument/2006/relationships');

      // sheetPr
      $this
        ->_writeSheetPr($objWriter, $pSheet);

      // Dimension
      $this
        ->_writeDimension($objWriter, $pSheet);

      // sheetViews
      $this
        ->_writeSheetViews($objWriter, $pSheet);

      // sheetFormatPr
      $this
        ->_writeSheetFormatPr($objWriter, $pSheet);

      // cols
      $this
        ->_writeCols($objWriter, $pSheet);

      // sheetData
      $this
        ->_writeSheetData($objWriter, $pSheet, $pStringTable);

      // sheetProtection
      $this
        ->_writeSheetProtection($objWriter, $pSheet);

      // protectedRanges
      $this
        ->_writeProtectedRanges($objWriter, $pSheet);

      // autoFilter
      $this
        ->_writeAutoFilter($objWriter, $pSheet);

      // mergeCells
      $this
        ->_writeMergeCells($objWriter, $pSheet);

      // conditionalFormatting
      $this
        ->_writeConditionalFormatting($objWriter, $pSheet);

      // dataValidations
      $this
        ->_writeDataValidations($objWriter, $pSheet);

      // hyperlinks
      $this
        ->_writeHyperlinks($objWriter, $pSheet);

      // Print options
      $this
        ->_writePrintOptions($objWriter, $pSheet);

      // Page margins
      $this
        ->_writePageMargins($objWriter, $pSheet);

      // Page setup
      $this
        ->_writePageSetup($objWriter, $pSheet);

      // Header / footer
      $this
        ->_writeHeaderFooter($objWriter, $pSheet);

      // Breaks
      $this
        ->_writeBreaks($objWriter, $pSheet);

      // Drawings and/or Charts
      $this
        ->_writeDrawings($objWriter, $pSheet, $includeCharts);

      // LegacyDrawing
      $this
        ->_writeLegacyDrawing($objWriter, $pSheet);

      // LegacyDrawingHF
      $this
        ->_writeLegacyDrawingHF($objWriter, $pSheet);
      $objWriter
        ->endElement();

      // Return
      return $objWriter
        ->getData();
    }
    else {
      throw new PHPExcel_Writer_Exception("Invalid PHPExcel_Worksheet object passed.");
    }
  }

  /**
   * Write SheetPr
   *
   * @param	PHPExcel_Shared_XMLWriter		$objWriter		XML Writer
   * @param	PHPExcel_Worksheet				$pSheet			Worksheet
   * @throws	PHPExcel_Writer_Exception
   */
  private function _writeSheetPr(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Worksheet $pSheet = null) {

    // sheetPr
    $objWriter
      ->startElement('sheetPr');

    //$objWriter->writeAttribute('codeName',		$pSheet->getTitle());
    if ($pSheet
      ->getParent()
      ->hasMacros()) {

      //if the workbook have macros, we need to have codeName for the sheet
      if ($pSheet
        ->hasCodeName() == false) {
        $pSheet
          ->setCodeName($pSheet
          ->getTitle());
      }
      $objWriter
        ->writeAttribute('codeName', $pSheet
        ->getCodeName());
    }
    $autoFilterRange = $pSheet
      ->getAutoFilter()
      ->getRange();
    if (!empty($autoFilterRange)) {
      $objWriter
        ->writeAttribute('filterMode', 1);
      $pSheet
        ->getAutoFilter()
        ->showHideRows();
    }

    // tabColor
    if ($pSheet
      ->isTabColorSet()) {
      $objWriter
        ->startElement('tabColor');
      $objWriter
        ->writeAttribute('rgb', $pSheet
        ->getTabColor()
        ->getARGB());
      $objWriter
        ->endElement();
    }

    // outlinePr
    $objWriter
      ->startElement('outlinePr');
    $objWriter
      ->writeAttribute('summaryBelow', $pSheet
      ->getShowSummaryBelow() ? '1' : '0');
    $objWriter
      ->writeAttribute('summaryRight', $pSheet
      ->getShowSummaryRight() ? '1' : '0');
    $objWriter
      ->endElement();

    // pageSetUpPr
    if ($pSheet
      ->getPageSetup()
      ->getFitToPage()) {
      $objWriter
        ->startElement('pageSetUpPr');
      $objWriter
        ->writeAttribute('fitToPage', '1');
      $objWriter
        ->endElement();
    }
    $objWriter
      ->endElement();
  }

  /**
   * Write Dimension
   *
   * @param	PHPExcel_Shared_XMLWriter	$objWriter		XML Writer
   * @param	PHPExcel_Worksheet			$pSheet			Worksheet
   * @throws	PHPExcel_Writer_Exception
   */
  private function _writeDimension(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Worksheet $pSheet = null) {

    // dimension
    $objWriter
      ->startElement('dimension');
    $objWriter
      ->writeAttribute('ref', $pSheet
      ->calculateWorksheetDimension());
    $objWriter
      ->endElement();
  }

  /**
   * Write SheetViews
   *
   * @param	PHPExcel_Shared_XMLWriter			$objWriter		XML Writer
   * @param	PHPExcel_Worksheet					$pSheet			Worksheet
   * @throws	PHPExcel_Writer_Exception
   */
  private function _writeSheetViews(PHPExcel_Shared_XMLWriter $objWriter = NULL, PHPExcel_Worksheet $pSheet = NULL) {

    // sheetViews
    $objWriter
      ->startElement('sheetViews');

    // Sheet selected?
    $sheetSelected = false;
    if ($this
      ->getParentWriter()
      ->getPHPExcel()
      ->getIndex($pSheet) == $this
      ->getParentWriter()
      ->getPHPExcel()
      ->getActiveSheetIndex()) {
      $sheetSelected = true;
    }

    // sheetView
    $objWriter
      ->startElement('sheetView');
    $objWriter
      ->writeAttribute('tabSelected', $sheetSelected ? '1' : '0');
    $objWriter
      ->writeAttribute('workbookViewId', '0');

    // Zoom scales
    if ($pSheet
      ->getSheetView()
      ->getZoomScale() != 100) {
      $objWriter
        ->writeAttribute('zoomScale', $pSheet
        ->getSheetView()
        ->getZoomScale());
    }
    if ($pSheet
      ->getSheetView()
      ->getZoomScaleNormal() != 100) {
      $objWriter
        ->writeAttribute('zoomScaleNormal', $pSheet
        ->getSheetView()
        ->getZoomScaleNormal());
    }

    // View Layout Type
    if ($pSheet
      ->getSheetView()
      ->getView() !== PHPExcel_Worksheet_SheetView::SHEETVIEW_NORMAL) {
      $objWriter
        ->writeAttribute('view', $pSheet
        ->getSheetView()
        ->getView());
    }

    // Gridlines
    if ($pSheet
      ->getShowGridlines()) {
      $objWriter
        ->writeAttribute('showGridLines', 'true');
    }
    else {
      $objWriter
        ->writeAttribute('showGridLines', 'false');
    }

    // Row and column headers
    if ($pSheet
      ->getShowRowColHeaders()) {
      $objWriter
        ->writeAttribute('showRowColHeaders', '1');
    }
    else {
      $objWriter
        ->writeAttribute('showRowColHeaders', '0');
    }

    // Right-to-left
    if ($pSheet
      ->getRightToLeft()) {
      $objWriter
        ->writeAttribute('rightToLeft', 'true');
    }
    $activeCell = $pSheet
      ->getActiveCell();

    // Pane
    $pane = '';
    $topLeftCell = $pSheet
      ->getFreezePane();
    if ($topLeftCell != '' && $topLeftCell != 'A1') {
      $activeCell = $topLeftCell;

      // Calculate freeze coordinates
      $xSplit = $ySplit = 0;
      list($xSplit, $ySplit) = PHPExcel_Cell::coordinateFromString($topLeftCell);
      $xSplit = PHPExcel_Cell::columnIndexFromString($xSplit);

      // pane
      $pane = 'topRight';
      $objWriter
        ->startElement('pane');
      if ($xSplit > 1) {
        $objWriter
          ->writeAttribute('xSplit', $xSplit - 1);
      }
      if ($ySplit > 1) {
        $objWriter
          ->writeAttribute('ySplit', $ySplit - 1);
        $pane = $xSplit > 1 ? 'bottomRight' : 'bottomLeft';
      }
      $objWriter
        ->writeAttribute('topLeftCell', $topLeftCell);
      $objWriter
        ->writeAttribute('activePane', $pane);
      $objWriter
        ->writeAttribute('state', 'frozen');
      $objWriter
        ->endElement();
      if ($xSplit > 1 && $ySplit > 1) {

        //	Write additional selections if more than two panes (ie both an X and a Y split)
        $objWriter
          ->startElement('selection');
        $objWriter
          ->writeAttribute('pane', 'topRight');
        $objWriter
          ->endElement();
        $objWriter
          ->startElement('selection');
        $objWriter
          ->writeAttribute('pane', 'bottomLeft');
        $objWriter
          ->endElement();
      }
    }

    // Selection
    //				if ($pane != '') {
    //	Only need to write selection element if we have a split pane
    //		We cheat a little by over-riding the active cell selection, setting it to the split cell
    $objWriter
      ->startElement('selection');
    if ($pane != '') {
      $objWriter
        ->writeAttribute('pane', $pane);
    }
    $objWriter
      ->writeAttribute('activeCell', $activeCell);
    $objWriter
      ->writeAttribute('sqref', $activeCell);
    $objWriter
      ->endElement();

    //				}
    $objWriter
      ->endElement();
    $objWriter
      ->endElement();
  }

  /**
   * Write SheetFormatPr
   *
   * @param	PHPExcel_Shared_XMLWriter $objWriter		XML Writer
   * @param	PHPExcel_Worksheet		  $pSheet			Worksheet
   * @throws	PHPExcel_Writer_Exception
   */
  private function _writeSheetFormatPr(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Worksheet $pSheet = null) {

    // sheetFormatPr
    $objWriter
      ->startElement('sheetFormatPr');

    // Default row height
    if ($pSheet
      ->getDefaultRowDimension()
      ->getRowHeight() >= 0) {
      $objWriter
        ->writeAttribute('customHeight', 'true');
      $objWriter
        ->writeAttribute('defaultRowHeight', PHPExcel_Shared_String::FormatNumber($pSheet
        ->getDefaultRowDimension()
        ->getRowHeight()));
    }
    else {
      $objWriter
        ->writeAttribute('defaultRowHeight', '14.4');
    }

    // Set Zero Height row
    if ((string) $pSheet
      ->getDefaultRowDimension()
      ->getZeroHeight() == '1' || strtolower((string) $pSheet
      ->getDefaultRowDimension()
      ->getZeroHeight()) == 'true') {
      $objWriter
        ->writeAttribute('zeroHeight', '1');
    }

    // Default column width
    if ($pSheet
      ->getDefaultColumnDimension()
      ->getWidth() >= 0) {
      $objWriter
        ->writeAttribute('defaultColWidth', PHPExcel_Shared_String::FormatNumber($pSheet
        ->getDefaultColumnDimension()
        ->getWidth()));
    }

    // Outline level - row
    $outlineLevelRow = 0;
    foreach ($pSheet
      ->getRowDimensions() as $dimension) {
      if ($dimension
        ->getOutlineLevel() > $outlineLevelRow) {
        $outlineLevelRow = $dimension
          ->getOutlineLevel();
      }
    }
    $objWriter
      ->writeAttribute('outlineLevelRow', (int) $outlineLevelRow);

    // Outline level - column
    $outlineLevelCol = 0;
    foreach ($pSheet
      ->getColumnDimensions() as $dimension) {
      if ($dimension
        ->getOutlineLevel() > $outlineLevelCol) {
        $outlineLevelCol = $dimension
          ->getOutlineLevel();
      }
    }
    $objWriter
      ->writeAttribute('outlineLevelCol', (int) $outlineLevelCol);
    $objWriter
      ->endElement();
  }

  /**
   * Write Cols
   *
   * @param	PHPExcel_Shared_XMLWriter			$objWriter		XML Writer
   * @param	PHPExcel_Worksheet					$pSheet			Worksheet
   * @throws	PHPExcel_Writer_Exception
   */
  private function _writeCols(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Worksheet $pSheet = null) {

    // cols
    if (count($pSheet
      ->getColumnDimensions()) > 0) {
      $objWriter
        ->startElement('cols');
      $pSheet
        ->calculateColumnWidths();

      // Loop through column dimensions
      foreach ($pSheet
        ->getColumnDimensions() as $colDimension) {

        // col
        $objWriter
          ->startElement('col');
        $objWriter
          ->writeAttribute('min', PHPExcel_Cell::columnIndexFromString($colDimension
          ->getColumnIndex()));
        $objWriter
          ->writeAttribute('max', PHPExcel_Cell::columnIndexFromString($colDimension
          ->getColumnIndex()));
        if ($colDimension
          ->getWidth() < 0) {

          // No width set, apply default of 10
          $objWriter
            ->writeAttribute('width', '9.10');
        }
        else {

          // Width set
          $objWriter
            ->writeAttribute('width', PHPExcel_Shared_String::FormatNumber($colDimension
            ->getWidth()));
        }

        // Column visibility
        if ($colDimension
          ->getVisible() == false) {
          $objWriter
            ->writeAttribute('hidden', 'true');
        }

        // Auto size?
        if ($colDimension
          ->getAutoSize()) {
          $objWriter
            ->writeAttribute('bestFit', 'true');
        }

        // Custom width?
        if ($colDimension
          ->getWidth() != $pSheet
          ->getDefaultColumnDimension()
          ->getWidth()) {
          $objWriter
            ->writeAttribute('customWidth', 'true');
        }

        // Collapsed
        if ($colDimension
          ->getCollapsed() == true) {
          $objWriter
            ->writeAttribute('collapsed', 'true');
        }

        // Outline level
        if ($colDimension
          ->getOutlineLevel() > 0) {
          $objWriter
            ->writeAttribute('outlineLevel', $colDimension
            ->getOutlineLevel());
        }

        // Style
        $objWriter
          ->writeAttribute('style', $colDimension
          ->getXfIndex());
        $objWriter
          ->endElement();
      }
      $objWriter
        ->endElement();
    }
  }

  /**
   * Write SheetProtection
   *
   * @param	PHPExcel_Shared_XMLWriter			$objWriter		XML Writer
   * @param	PHPExcel_Worksheet					$pSheet			Worksheet
   * @throws	PHPExcel_Writer_Exception
   */
  private function _writeSheetProtection(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Worksheet $pSheet = null) {

    // sheetProtection
    $objWriter
      ->startElement('sheetProtection');
    if ($pSheet
      ->getProtection()
      ->getPassword() != '') {
      $objWriter
        ->writeAttribute('password', $pSheet
        ->getProtection()
        ->getPassword());
    }
    $objWriter
      ->writeAttribute('sheet', $pSheet
      ->getProtection()
      ->getSheet() ? 'true' : 'false');
    $objWriter
      ->writeAttribute('objects', $pSheet
      ->getProtection()
      ->getObjects() ? 'true' : 'false');
    $objWriter
      ->writeAttribute('scenarios', $pSheet
      ->getProtection()
      ->getScenarios() ? 'true' : 'false');
    $objWriter
      ->writeAttribute('formatCells', $pSheet
      ->getProtection()
      ->getFormatCells() ? 'true' : 'false');
    $objWriter
      ->writeAttribute('formatColumns', $pSheet
      ->getProtection()
      ->getFormatColumns() ? 'true' : 'false');
    $objWriter
      ->writeAttribute('formatRows', $pSheet
      ->getProtection()
      ->getFormatRows() ? 'true' : 'false');
    $objWriter
      ->writeAttribute('insertColumns', $pSheet
      ->getProtection()
      ->getInsertColumns() ? 'true' : 'false');
    $objWriter
      ->writeAttribute('insertRows', $pSheet
      ->getProtection()
      ->getInsertRows() ? 'true' : 'false');
    $objWriter
      ->writeAttribute('insertHyperlinks', $pSheet
      ->getProtection()
      ->getInsertHyperlinks() ? 'true' : 'false');
    $objWriter
      ->writeAttribute('deleteColumns', $pSheet
      ->getProtection()
      ->getDeleteColumns() ? 'true' : 'false');
    $objWriter
      ->writeAttribute('deleteRows', $pSheet
      ->getProtection()
      ->getDeleteRows() ? 'true' : 'false');
    $objWriter
      ->writeAttribute('selectLockedCells', $pSheet
      ->getProtection()
      ->getSelectLockedCells() ? 'true' : 'false');
    $objWriter
      ->writeAttribute('sort', $pSheet
      ->getProtection()
      ->getSort() ? 'true' : 'false');
    $objWriter
      ->writeAttribute('autoFilter', $pSheet
      ->getProtection()
      ->getAutoFilter() ? 'true' : 'false');
    $objWriter
      ->writeAttribute('pivotTables', $pSheet
      ->getProtection()
      ->getPivotTables() ? 'true' : 'false');
    $objWriter
      ->writeAttribute('selectUnlockedCells', $pSheet
      ->getProtection()
      ->getSelectUnlockedCells() ? 'true' : 'false');
    $objWriter
      ->endElement();
  }

  /**
   * Write ConditionalFormatting
   *
   * @param	PHPExcel_Shared_XMLWriter			$objWriter		XML Writer
   * @param	PHPExcel_Worksheet					$pSheet			Worksheet
   * @throws	PHPExcel_Writer_Exception
   */
  private function _writeConditionalFormatting(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Worksheet $pSheet = null) {

    // Conditional id
    $id = 1;

    // Loop through styles in the current worksheet
    foreach ($pSheet
      ->getConditionalStylesCollection() as $cellCoordinate => $conditionalStyles) {
      foreach ($conditionalStyles as $conditional) {

        // WHY was this again?
        // if ($this->getParentWriter()->getStylesConditionalHashTable()->getIndexForHashCode( $conditional->getHashCode() ) == '') {
        //	continue;
        // }
        if ($conditional
          ->getConditionType() != PHPExcel_Style_Conditional::CONDITION_NONE) {

          // conditionalFormatting
          $objWriter
            ->startElement('conditionalFormatting');
          $objWriter
            ->writeAttribute('sqref', $cellCoordinate);

          // cfRule
          $objWriter
            ->startElement('cfRule');
          $objWriter
            ->writeAttribute('type', $conditional
            ->getConditionType());
          $objWriter
            ->writeAttribute('dxfId', $this
            ->getParentWriter()
            ->getStylesConditionalHashTable()
            ->getIndexForHashCode($conditional
            ->getHashCode()));
          $objWriter
            ->writeAttribute('priority', $id++);
          if (($conditional
            ->getConditionType() == PHPExcel_Style_Conditional::CONDITION_CELLIS || $conditional
            ->getConditionType() == PHPExcel_Style_Conditional::CONDITION_CONTAINSTEXT) && $conditional
            ->getOperatorType() != PHPExcel_Style_Conditional::OPERATOR_NONE) {
            $objWriter
              ->writeAttribute('operator', $conditional
              ->getOperatorType());
          }
          if ($conditional
            ->getConditionType() == PHPExcel_Style_Conditional::CONDITION_CONTAINSTEXT && !is_null($conditional
            ->getText())) {
            $objWriter
              ->writeAttribute('text', $conditional
              ->getText());
          }
          if ($conditional
            ->getConditionType() == PHPExcel_Style_Conditional::CONDITION_CONTAINSTEXT && $conditional
            ->getOperatorType() == PHPExcel_Style_Conditional::OPERATOR_CONTAINSTEXT && !is_null($conditional
            ->getText())) {
            $objWriter
              ->writeElement('formula', 'NOT(ISERROR(SEARCH("' . $conditional
              ->getText() . '",' . $cellCoordinate . ')))');
          }
          else {
            if ($conditional
              ->getConditionType() == PHPExcel_Style_Conditional::CONDITION_CONTAINSTEXT && $conditional
              ->getOperatorType() == PHPExcel_Style_Conditional::OPERATOR_BEGINSWITH && !is_null($conditional
              ->getText())) {
              $objWriter
                ->writeElement('formula', 'LEFT(' . $cellCoordinate . ',' . strlen($conditional
                ->getText()) . ')="' . $conditional
                ->getText() . '"');
            }
            else {
              if ($conditional
                ->getConditionType() == PHPExcel_Style_Conditional::CONDITION_CONTAINSTEXT && $conditional
                ->getOperatorType() == PHPExcel_Style_Conditional::OPERATOR_ENDSWITH && !is_null($conditional
                ->getText())) {
                $objWriter
                  ->writeElement('formula', 'RIGHT(' . $cellCoordinate . ',' . strlen($conditional
                  ->getText()) . ')="' . $conditional
                  ->getText() . '"');
              }
              else {
                if ($conditional
                  ->getConditionType() == PHPExcel_Style_Conditional::CONDITION_CONTAINSTEXT && $conditional
                  ->getOperatorType() == PHPExcel_Style_Conditional::OPERATOR_NOTCONTAINS && !is_null($conditional
                  ->getText())) {
                  $objWriter
                    ->writeElement('formula', 'ISERROR(SEARCH("' . $conditional
                    ->getText() . '",' . $cellCoordinate . '))');
                }
                else {
                  if ($conditional
                    ->getConditionType() == PHPExcel_Style_Conditional::CONDITION_CELLIS || $conditional
                    ->getConditionType() == PHPExcel_Style_Conditional::CONDITION_CONTAINSTEXT || $conditional
                    ->getConditionType() == PHPExcel_Style_Conditional::CONDITION_EXPRESSION) {
                    foreach ($conditional
                      ->getConditions() as $formula) {

                      // Formula
                      $objWriter
                        ->writeElement('formula', $formula);
                    }
                  }
                }
              }
            }
          }
          $objWriter
            ->endElement();
          $objWriter
            ->endElement();
        }
      }
    }
  }

  /**
   * Write DataValidations
   *
   * @param	PHPExcel_Shared_XMLWriter			$objWriter		XML Writer
   * @param	PHPExcel_Worksheet					$pSheet			Worksheet
   * @throws	PHPExcel_Writer_Exception
   */
  private function _writeDataValidations(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Worksheet $pSheet = null) {

    // Datavalidation collection
    $dataValidationCollection = $pSheet
      ->getDataValidationCollection();

    // Write data validations?
    if (!empty($dataValidationCollection)) {
      $objWriter
        ->startElement('dataValidations');
      $objWriter
        ->writeAttribute('count', count($dataValidationCollection));
      foreach ($dataValidationCollection as $coordinate => $dv) {
        $objWriter
          ->startElement('dataValidation');
        if ($dv
          ->getType() != '') {
          $objWriter
            ->writeAttribute('type', $dv
            ->getType());
        }
        if ($dv
          ->getErrorStyle() != '') {
          $objWriter
            ->writeAttribute('errorStyle', $dv
            ->getErrorStyle());
        }
        if ($dv
          ->getOperator() != '') {
          $objWriter
            ->writeAttribute('operator', $dv
            ->getOperator());
        }
        $objWriter
          ->writeAttribute('allowBlank', $dv
          ->getAllowBlank() ? '1' : '0');
        $objWriter
          ->writeAttribute('showDropDown', !$dv
          ->getShowDropDown() ? '1' : '0');
        $objWriter
          ->writeAttribute('showInputMessage', $dv
          ->getShowInputMessage() ? '1' : '0');
        $objWriter
          ->writeAttribute('showErrorMessage', $dv
          ->getShowErrorMessage() ? '1' : '0');
        if ($dv
          ->getErrorTitle() !== '') {
          $objWriter
            ->writeAttribute('errorTitle', $dv
            ->getErrorTitle());
        }
        if ($dv
          ->getError() !== '') {
          $objWriter
            ->writeAttribute('error', $dv
            ->getError());
        }
        if ($dv
          ->getPromptTitle() !== '') {
          $objWriter
            ->writeAttribute('promptTitle', $dv
            ->getPromptTitle());
        }
        if ($dv
          ->getPrompt() !== '') {
          $objWriter
            ->writeAttribute('prompt', $dv
            ->getPrompt());
        }
        $objWriter
          ->writeAttribute('sqref', $coordinate);
        if ($dv
          ->getFormula1() !== '') {
          $objWriter
            ->writeElement('formula1', $dv
            ->getFormula1());
        }
        if ($dv
          ->getFormula2() !== '') {
          $objWriter
            ->writeElement('formula2', $dv
            ->getFormula2());
        }
        $objWriter
          ->endElement();
      }
      $objWriter
        ->endElement();
    }
  }

  /**
   * Write Hyperlinks
   *
   * @param	PHPExcel_Shared_XMLWriter			$objWriter		XML Writer
   * @param	PHPExcel_Worksheet					$pSheet			Worksheet
   * @throws	PHPExcel_Writer_Exception
   */
  private function _writeHyperlinks(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Worksheet $pSheet = null) {

    // Hyperlink collection
    $hyperlinkCollection = $pSheet
      ->getHyperlinkCollection();

    // Relation ID
    $relationId = 1;

    // Write hyperlinks?
    if (!empty($hyperlinkCollection)) {
      $objWriter
        ->startElement('hyperlinks');
      foreach ($hyperlinkCollection as $coordinate => $hyperlink) {
        $objWriter
          ->startElement('hyperlink');
        $objWriter
          ->writeAttribute('ref', $coordinate);
        if (!$hyperlink
          ->isInternal()) {
          $objWriter
            ->writeAttribute('r:id', 'rId_hyperlink_' . $relationId);
          ++$relationId;
        }
        else {
          $objWriter
            ->writeAttribute('location', str_replace('sheet://', '', $hyperlink
            ->getUrl()));
        }
        if ($hyperlink
          ->getTooltip() != '') {
          $objWriter
            ->writeAttribute('tooltip', $hyperlink
            ->getTooltip());
        }
        $objWriter
          ->endElement();
      }
      $objWriter
        ->endElement();
    }
  }

  /**
   * Write ProtectedRanges
   *
   * @param	PHPExcel_Shared_XMLWriter			$objWriter		XML Writer
   * @param	PHPExcel_Worksheet					$pSheet			Worksheet
   * @throws	PHPExcel_Writer_Exception
   */
  private function _writeProtectedRanges(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Worksheet $pSheet = null) {
    if (count($pSheet
      ->getProtectedCells()) > 0) {

      // protectedRanges
      $objWriter
        ->startElement('protectedRanges');

      // Loop protectedRanges
      foreach ($pSheet
        ->getProtectedCells() as $protectedCell => $passwordHash) {

        // protectedRange
        $objWriter
          ->startElement('protectedRange');
        $objWriter
          ->writeAttribute('name', 'p' . md5($protectedCell));
        $objWriter
          ->writeAttribute('sqref', $protectedCell);
        if (!empty($passwordHash)) {
          $objWriter
            ->writeAttribute('password', $passwordHash);
        }
        $objWriter
          ->endElement();
      }
      $objWriter
        ->endElement();
    }
  }

  /**
   * Write MergeCells
   *
   * @param	PHPExcel_Shared_XMLWriter			$objWriter		XML Writer
   * @param	PHPExcel_Worksheet					$pSheet			Worksheet
   * @throws	PHPExcel_Writer_Exception
   */
  private function _writeMergeCells(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Worksheet $pSheet = null) {
    if (count($pSheet
      ->getMergeCells()) > 0) {

      // mergeCells
      $objWriter
        ->startElement('mergeCells');

      // Loop mergeCells
      foreach ($pSheet
        ->getMergeCells() as $mergeCell) {

        // mergeCell
        $objWriter
          ->startElement('mergeCell');
        $objWriter
          ->writeAttribute('ref', $mergeCell);
        $objWriter
          ->endElement();
      }
      $objWriter
        ->endElement();
    }
  }

  /**
   * Write PrintOptions
   *
   * @param	PHPExcel_Shared_XMLWriter			$objWriter		XML Writer
   * @param	PHPExcel_Worksheet					$pSheet			Worksheet
   * @throws	PHPExcel_Writer_Exception
   */
  private function _writePrintOptions(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Worksheet $pSheet = null) {

    // printOptions
    $objWriter
      ->startElement('printOptions');
    $objWriter
      ->writeAttribute('gridLines', $pSheet
      ->getPrintGridlines() ? 'true' : 'false');
    $objWriter
      ->writeAttribute('gridLinesSet', 'true');
    if ($pSheet
      ->getPageSetup()
      ->getHorizontalCentered()) {
      $objWriter
        ->writeAttribute('horizontalCentered', 'true');
    }
    if ($pSheet
      ->getPageSetup()
      ->getVerticalCentered()) {
      $objWriter
        ->writeAttribute('verticalCentered', 'true');
    }
    $objWriter
      ->endElement();
  }

  /**
   * Write PageMargins
   *
   * @param	PHPExcel_Shared_XMLWriter				$objWriter		XML Writer
   * @param	PHPExcel_Worksheet						$pSheet			Worksheet
   * @throws	PHPExcel_Writer_Exception
   */
  private function _writePageMargins(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Worksheet $pSheet = null) {

    // pageMargins
    $objWriter
      ->startElement('pageMargins');
    $objWriter
      ->writeAttribute('left', PHPExcel_Shared_String::FormatNumber($pSheet
      ->getPageMargins()
      ->getLeft()));
    $objWriter
      ->writeAttribute('right', PHPExcel_Shared_String::FormatNumber($pSheet
      ->getPageMargins()
      ->getRight()));
    $objWriter
      ->writeAttribute('top', PHPExcel_Shared_String::FormatNumber($pSheet
      ->getPageMargins()
      ->getTop()));
    $objWriter
      ->writeAttribute('bottom', PHPExcel_Shared_String::FormatNumber($pSheet
      ->getPageMargins()
      ->getBottom()));
    $objWriter
      ->writeAttribute('header', PHPExcel_Shared_String::FormatNumber($pSheet
      ->getPageMargins()
      ->getHeader()));
    $objWriter
      ->writeAttribute('footer', PHPExcel_Shared_String::FormatNumber($pSheet
      ->getPageMargins()
      ->getFooter()));
    $objWriter
      ->endElement();
  }

  /**
   * Write AutoFilter
   *
   * @param	PHPExcel_Shared_XMLWriter				$objWriter		XML Writer
   * @param	PHPExcel_Worksheet						$pSheet			Worksheet
   * @throws	PHPExcel_Writer_Exception
   */
  private function _writeAutoFilter(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Worksheet $pSheet = null) {
    $autoFilterRange = $pSheet
      ->getAutoFilter()
      ->getRange();
    if (!empty($autoFilterRange)) {

      // autoFilter
      $objWriter
        ->startElement('autoFilter');

      // Strip any worksheet reference from the filter coordinates
      $range = PHPExcel_Cell::splitRange($autoFilterRange);
      $range = $range[0];

      //	Strip any worksheet ref
      if (strpos($range[0], '!') !== false) {
        list($ws, $range[0]) = explode('!', $range[0]);
      }
      $range = implode(':', $range);
      $objWriter
        ->writeAttribute('ref', str_replace('$', '', $range));
      $columns = $pSheet
        ->getAutoFilter()
        ->getColumns();
      if (count($columns > 0)) {
        foreach ($columns as $columnID => $column) {
          $rules = $column
            ->getRules();
          if (count($rules > 0)) {
            $objWriter
              ->startElement('filterColumn');
            $objWriter
              ->writeAttribute('colId', $pSheet
              ->getAutoFilter()
              ->getColumnOffset($columnID));
            $objWriter
              ->startElement($column
              ->getFilterType());
            if ($column
              ->getJoin() == PHPExcel_Worksheet_AutoFilter_Column::AUTOFILTER_COLUMN_JOIN_AND) {
              $objWriter
                ->writeAttribute('and', 1);
            }
            foreach ($rules as $rule) {
              if ($column
                ->getFilterType() === PHPExcel_Worksheet_AutoFilter_Column::AUTOFILTER_FILTERTYPE_FILTER && $rule
                ->getOperator() === PHPExcel_Worksheet_AutoFilter_Column_Rule::AUTOFILTER_COLUMN_RULE_EQUAL && $rule
                ->getValue() === '') {

                //	Filter rule for Blanks
                $objWriter
                  ->writeAttribute('blank', 1);
              }
              elseif ($rule
                ->getRuleType() === PHPExcel_Worksheet_AutoFilter_Column_Rule::AUTOFILTER_RULETYPE_DYNAMICFILTER) {

                //	Dynamic Filter Rule
                $objWriter
                  ->writeAttribute('type', $rule
                  ->getGrouping());
                $val = $column
                  ->getAttribute('val');
                if ($val !== NULL) {
                  $objWriter
                    ->writeAttribute('val', $val);
                }
                $maxVal = $column
                  ->getAttribute('maxVal');
                if ($maxVal !== NULL) {
                  $objWriter
                    ->writeAttribute('maxVal', $maxVal);
                }
              }
              elseif ($rule
                ->getRuleType() === PHPExcel_Worksheet_AutoFilter_Column_Rule::AUTOFILTER_RULETYPE_TOPTENFILTER) {

                //	Top 10 Filter Rule
                $objWriter
                  ->writeAttribute('val', $rule
                  ->getValue());
                $objWriter
                  ->writeAttribute('percent', $rule
                  ->getOperator() === PHPExcel_Worksheet_AutoFilter_Column_Rule::AUTOFILTER_COLUMN_RULE_TOPTEN_PERCENT ? '1' : '0');
                $objWriter
                  ->writeAttribute('top', $rule
                  ->getGrouping() === PHPExcel_Worksheet_AutoFilter_Column_Rule::AUTOFILTER_COLUMN_RULE_TOPTEN_TOP ? '1' : '0');
              }
              else {

                //	Filter, DateGroupItem or CustomFilter
                $objWriter
                  ->startElement($rule
                  ->getRuleType());
                if ($rule
                  ->getOperator() !== PHPExcel_Worksheet_AutoFilter_Column_Rule::AUTOFILTER_COLUMN_RULE_EQUAL) {
                  $objWriter
                    ->writeAttribute('operator', $rule
                    ->getOperator());
                }
                if ($rule
                  ->getRuleType() === PHPExcel_Worksheet_AutoFilter_Column_Rule::AUTOFILTER_RULETYPE_DATEGROUP) {

                  // Date Group filters
                  foreach ($rule
                    ->getValue() as $key => $value) {
                    if ($value > '') {
                      $objWriter
                        ->writeAttribute($key, $value);
                    }
                  }
                  $objWriter
                    ->writeAttribute('dateTimeGrouping', $rule
                    ->getGrouping());
                }
                else {
                  $objWriter
                    ->writeAttribute('val', $rule
                    ->getValue());
                }
                $objWriter
                  ->endElement();
              }
            }
            $objWriter
              ->endElement();
            $objWriter
              ->endElement();
          }
        }
      }
      $objWriter
        ->endElement();
    }
  }

  /**
   * Write PageSetup
   *
   * @param	PHPExcel_Shared_XMLWriter			$objWriter		XML Writer
   * @param	PHPExcel_Worksheet					$pSheet			Worksheet
   * @throws	PHPExcel_Writer_Exception
   */
  private function _writePageSetup(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Worksheet $pSheet = null) {

    // pageSetup
    $objWriter
      ->startElement('pageSetup');
    $objWriter
      ->writeAttribute('paperSize', $pSheet
      ->getPageSetup()
      ->getPaperSize());
    $objWriter
      ->writeAttribute('orientation', $pSheet
      ->getPageSetup()
      ->getOrientation());
    if (!is_null($pSheet
      ->getPageSetup()
      ->getScale())) {
      $objWriter
        ->writeAttribute('scale', $pSheet
        ->getPageSetup()
        ->getScale());
    }
    if (!is_null($pSheet
      ->getPageSetup()
      ->getFitToHeight())) {
      $objWriter
        ->writeAttribute('fitToHeight', $pSheet
        ->getPageSetup()
        ->getFitToHeight());
    }
    else {
      $objWriter
        ->writeAttribute('fitToHeight', '0');
    }
    if (!is_null($pSheet
      ->getPageSetup()
      ->getFitToWidth())) {
      $objWriter
        ->writeAttribute('fitToWidth', $pSheet
        ->getPageSetup()
        ->getFitToWidth());
    }
    else {
      $objWriter
        ->writeAttribute('fitToWidth', '0');
    }
    if (!is_null($pSheet
      ->getPageSetup()
      ->getFirstPageNumber())) {
      $objWriter
        ->writeAttribute('firstPageNumber', $pSheet
        ->getPageSetup()
        ->getFirstPageNumber());
      $objWriter
        ->writeAttribute('useFirstPageNumber', '1');
    }
    $objWriter
      ->endElement();
  }

  /**
   * Write Header / Footer
   *
   * @param	PHPExcel_Shared_XMLWriter		$objWriter		XML Writer
   * @param	PHPExcel_Worksheet				$pSheet			Worksheet
   * @throws	PHPExcel_Writer_Exception
   */
  private function _writeHeaderFooter(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Worksheet $pSheet = null) {

    // headerFooter
    $objWriter
      ->startElement('headerFooter');
    $objWriter
      ->writeAttribute('differentOddEven', $pSheet
      ->getHeaderFooter()
      ->getDifferentOddEven() ? 'true' : 'false');
    $objWriter
      ->writeAttribute('differentFirst', $pSheet
      ->getHeaderFooter()
      ->getDifferentFirst() ? 'true' : 'false');
    $objWriter
      ->writeAttribute('scaleWithDoc', $pSheet
      ->getHeaderFooter()
      ->getScaleWithDocument() ? 'true' : 'false');
    $objWriter
      ->writeAttribute('alignWithMargins', $pSheet
      ->getHeaderFooter()
      ->getAlignWithMargins() ? 'true' : 'false');
    $objWriter
      ->writeElement('oddHeader', $pSheet
      ->getHeaderFooter()
      ->getOddHeader());
    $objWriter
      ->writeElement('oddFooter', $pSheet
      ->getHeaderFooter()
      ->getOddFooter());
    $objWriter
      ->writeElement('evenHeader', $pSheet
      ->getHeaderFooter()
      ->getEvenHeader());
    $objWriter
      ->writeElement('evenFooter', $pSheet
      ->getHeaderFooter()
      ->getEvenFooter());
    $objWriter
      ->writeElement('firstHeader', $pSheet
      ->getHeaderFooter()
      ->getFirstHeader());
    $objWriter
      ->writeElement('firstFooter', $pSheet
      ->getHeaderFooter()
      ->getFirstFooter());
    $objWriter
      ->endElement();
  }

  /**
   * Write Breaks
   *
   * @param	PHPExcel_Shared_XMLWriter		$objWriter		XML Writer
   * @param	PHPExcel_Worksheet				$pSheet			Worksheet
   * @throws	PHPExcel_Writer_Exception
   */
  private function _writeBreaks(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Worksheet $pSheet = null) {

    // Get row and column breaks
    $aRowBreaks = array();
    $aColumnBreaks = array();
    foreach ($pSheet
      ->getBreaks() as $cell => $breakType) {
      if ($breakType == PHPExcel_Worksheet::BREAK_ROW) {
        $aRowBreaks[] = $cell;
      }
      else {
        if ($breakType == PHPExcel_Worksheet::BREAK_COLUMN) {
          $aColumnBreaks[] = $cell;
        }
      }
    }

    // rowBreaks
    if (!empty($aRowBreaks)) {
      $objWriter
        ->startElement('rowBreaks');
      $objWriter
        ->writeAttribute('count', count($aRowBreaks));
      $objWriter
        ->writeAttribute('manualBreakCount', count($aRowBreaks));
      foreach ($aRowBreaks as $cell) {
        $coords = PHPExcel_Cell::coordinateFromString($cell);
        $objWriter
          ->startElement('brk');
        $objWriter
          ->writeAttribute('id', $coords[1]);
        $objWriter
          ->writeAttribute('man', '1');
        $objWriter
          ->endElement();
      }
      $objWriter
        ->endElement();
    }

    // Second, write column breaks
    if (!empty($aColumnBreaks)) {
      $objWriter
        ->startElement('colBreaks');
      $objWriter
        ->writeAttribute('count', count($aColumnBreaks));
      $objWriter
        ->writeAttribute('manualBreakCount', count($aColumnBreaks));
      foreach ($aColumnBreaks as $cell) {
        $coords = PHPExcel_Cell::coordinateFromString($cell);
        $objWriter
          ->startElement('brk');
        $objWriter
          ->writeAttribute('id', PHPExcel_Cell::columnIndexFromString($coords[0]) - 1);
        $objWriter
          ->writeAttribute('man', '1');
        $objWriter
          ->endElement();
      }
      $objWriter
        ->endElement();
    }
  }

  /**
   * Write SheetData
   *
   * @param	PHPExcel_Shared_XMLWriter		$objWriter		XML Writer
   * @param	PHPExcel_Worksheet				$pSheet			Worksheet
   * @param	string[]						$pStringTable	String table
   * @throws	PHPExcel_Writer_Exception
   */
  private function _writeSheetData(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Worksheet $pSheet = null, $pStringTable = null) {
    if (is_array($pStringTable)) {

      // Flipped stringtable, for faster index searching
      $aFlippedStringTable = $this
        ->getParentWriter()
        ->getWriterPart('stringtable')
        ->flipStringTable($pStringTable);

      // sheetData
      $objWriter
        ->startElement('sheetData');

      // Get column count
      $colCount = PHPExcel_Cell::columnIndexFromString($pSheet
        ->getHighestColumn());

      // Highest row number
      $highestRow = $pSheet
        ->getHighestRow();

      // Loop through cells
      $cellsByRow = array();
      foreach ($pSheet
        ->getCellCollection() as $cellID) {
        $cellAddress = PHPExcel_Cell::coordinateFromString($cellID);
        $cellsByRow[$cellAddress[1]][] = $cellID;
      }
      $currentRow = 0;
      while ($currentRow++ < $highestRow) {

        // Get row dimension
        $rowDimension = $pSheet
          ->getRowDimension($currentRow);

        // Write current row?
        $writeCurrentRow = isset($cellsByRow[$currentRow]) || $rowDimension
          ->getRowHeight() >= 0 || $rowDimension
          ->getVisible() == false || $rowDimension
          ->getCollapsed() == true || $rowDimension
          ->getOutlineLevel() > 0 || $rowDimension
          ->getXfIndex() !== null;
        if ($writeCurrentRow) {

          // Start a new row
          $objWriter
            ->startElement('row');
          $objWriter
            ->writeAttribute('r', $currentRow);
          $objWriter
            ->writeAttribute('spans', '1:' . $colCount);

          // Row dimensions
          if ($rowDimension
            ->getRowHeight() >= 0) {
            $objWriter
              ->writeAttribute('customHeight', '1');
            $objWriter
              ->writeAttribute('ht', PHPExcel_Shared_String::FormatNumber($rowDimension
              ->getRowHeight()));
          }

          // Row visibility
          if ($rowDimension
            ->getVisible() == false) {
            $objWriter
              ->writeAttribute('hidden', 'true');
          }

          // Collapsed
          if ($rowDimension
            ->getCollapsed() == true) {
            $objWriter
              ->writeAttribute('collapsed', 'true');
          }

          // Outline level
          if ($rowDimension
            ->getOutlineLevel() > 0) {
            $objWriter
              ->writeAttribute('outlineLevel', $rowDimension
              ->getOutlineLevel());
          }

          // Style
          if ($rowDimension
            ->getXfIndex() !== null) {
            $objWriter
              ->writeAttribute('s', $rowDimension
              ->getXfIndex());
            $objWriter
              ->writeAttribute('customFormat', '1');
          }

          // Write cells
          if (isset($cellsByRow[$currentRow])) {
            foreach ($cellsByRow[$currentRow] as $cellAddress) {

              // Write cell
              $this
                ->_writeCell($objWriter, $pSheet, $cellAddress, $pStringTable, $aFlippedStringTable);
            }
          }

          // End row
          $objWriter
            ->endElement();
        }
      }
      $objWriter
        ->endElement();
    }
    else {
      throw new PHPExcel_Writer_Exception("Invalid parameters passed.");
    }
  }

  /**
   * Write Cell
   *
   * @param	PHPExcel_Shared_XMLWriter	$objWriter				XML Writer
   * @param	PHPExcel_Worksheet			$pSheet					Worksheet
   * @param	PHPExcel_Cell				$pCellAddress			Cell Address
   * @param	string[]					$pStringTable			String table
   * @param	string[]					$pFlippedStringTable	String table (flipped), for faster index searching
   * @throws	PHPExcel_Writer_Exception
   */
  private function _writeCell(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Worksheet $pSheet = null, $pCellAddress = null, $pStringTable = null, $pFlippedStringTable = null) {
    if (is_array($pStringTable) && is_array($pFlippedStringTable)) {

      // Cell
      $pCell = $pSheet
        ->getCell($pCellAddress);
      $objWriter
        ->startElement('c');
      $objWriter
        ->writeAttribute('r', $pCellAddress);

      // Sheet styles
      if ($pCell
        ->getXfIndex() != '') {
        $objWriter
          ->writeAttribute('s', $pCell
          ->getXfIndex());
      }

      // If cell value is supplied, write cell value
      $cellValue = $pCell
        ->getValue();
      if (is_object($cellValue) || $cellValue !== '') {

        // Map type
        $mappedType = $pCell
          ->getDataType();

        // Write data type depending on its type
        switch (strtolower($mappedType)) {
          case 'inlinestr':

          // Inline string
          case 's':

          // String
          case 'b':

            // Boolean
            $objWriter
              ->writeAttribute('t', $mappedType);
            break;
          case 'f':

            // Formula
            $calculatedValue = $this
              ->getParentWriter()
              ->getPreCalculateFormulas() ? $pCell
              ->getCalculatedValue() : $cellValue;
            if (is_string($calculatedValue)) {
              $objWriter
                ->writeAttribute('t', 'str');
            }
            break;
          case 'e':

            // Error
            $objWriter
              ->writeAttribute('t', $mappedType);
        }

        // Write data depending on its type
        switch (strtolower($mappedType)) {
          case 'inlinestr':

            // Inline string
            if (!$cellValue instanceof PHPExcel_RichText) {
              $objWriter
                ->writeElement('t', PHPExcel_Shared_String::ControlCharacterPHP2OOXML(htmlspecialchars($cellValue)));
            }
            else {
              if ($cellValue instanceof PHPExcel_RichText) {
                $objWriter
                  ->startElement('is');
                $this
                  ->getParentWriter()
                  ->getWriterPart('stringtable')
                  ->writeRichText($objWriter, $cellValue);
                $objWriter
                  ->endElement();
              }
            }
            break;
          case 's':

            // String
            if (!$cellValue instanceof PHPExcel_RichText) {
              if (isset($pFlippedStringTable[$cellValue])) {
                $objWriter
                  ->writeElement('v', $pFlippedStringTable[$cellValue]);
              }
            }
            else {
              if ($cellValue instanceof PHPExcel_RichText) {
                $objWriter
                  ->writeElement('v', $pFlippedStringTable[$cellValue
                  ->getHashCode()]);
              }
            }
            break;
          case 'f':

            // Formula
            $attributes = $pCell
              ->getFormulaAttributes();
            if ($attributes['t'] == 'array') {
              $objWriter
                ->startElement('f');
              $objWriter
                ->writeAttribute('t', 'array');
              $objWriter
                ->writeAttribute('ref', $pCellAddress);
              $objWriter
                ->writeAttribute('aca', '1');
              $objWriter
                ->writeAttribute('ca', '1');
              $objWriter
                ->text(substr($cellValue, 1));
              $objWriter
                ->endElement();
            }
            else {
              $objWriter
                ->writeElement('f', substr($cellValue, 1));
            }
            if ($this
              ->getParentWriter()
              ->getOffice2003Compatibility() === false) {
              if ($this
                ->getParentWriter()
                ->getPreCalculateFormulas()) {

                //								$calculatedValue = $pCell->getCalculatedValue();
                if (!is_array($calculatedValue) && substr($calculatedValue, 0, 1) != '#') {
                  $objWriter
                    ->writeElement('v', PHPExcel_Shared_String::FormatNumber($calculatedValue));
                }
                else {
                  $objWriter
                    ->writeElement('v', '0');
                }
              }
              else {
                $objWriter
                  ->writeElement('v', '0');
              }
            }
            break;
          case 'n':

            // Numeric
            // force point as decimal separator in case current locale uses comma
            $objWriter
              ->writeElement('v', str_replace(',', '.', $cellValue));
            break;
          case 'b':

            // Boolean
            $objWriter
              ->writeElement('v', $cellValue ? '1' : '0');
            break;
          case 'e':

            // Error
            if (substr($cellValue, 0, 1) == '=') {
              $objWriter
                ->writeElement('f', substr($cellValue, 1));
              $objWriter
                ->writeElement('v', substr($cellValue, 1));
            }
            else {
              $objWriter
                ->writeElement('v', $cellValue);
            }
            break;
        }
      }
      $objWriter
        ->endElement();
    }
    else {
      throw new PHPExcel_Writer_Exception("Invalid parameters passed.");
    }
  }

  /**
   * Write Drawings
   *
   * @param	PHPExcel_Shared_XMLWriter	$objWriter		XML Writer
   * @param	PHPExcel_Worksheet			$pSheet			Worksheet
   * @param	boolean						$includeCharts	Flag indicating if we should include drawing details for charts
   * @throws	PHPExcel_Writer_Exception
   */
  private function _writeDrawings(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Worksheet $pSheet = null, $includeCharts = FALSE) {
    $chartCount = $includeCharts ? $pSheet
      ->getChartCollection()
      ->count() : 0;

    // If sheet contains drawings, add the relationships
    if ($pSheet
      ->getDrawingCollection()
      ->count() > 0 || $chartCount > 0) {
      $objWriter
        ->startElement('drawing');
      $objWriter
        ->writeAttribute('r:id', 'rId1');
      $objWriter
        ->endElement();
    }
  }

  /**
   * Write LegacyDrawing
   *
   * @param	PHPExcel_Shared_XMLWriter		$objWriter		XML Writer
   * @param	PHPExcel_Worksheet				$pSheet			Worksheet
   * @throws	PHPExcel_Writer_Exception
   */
  private function _writeLegacyDrawing(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Worksheet $pSheet = null) {

    // If sheet contains comments, add the relationships
    if (count($pSheet
      ->getComments()) > 0) {
      $objWriter
        ->startElement('legacyDrawing');
      $objWriter
        ->writeAttribute('r:id', 'rId_comments_vml1');
      $objWriter
        ->endElement();
    }
  }

  /**
   * Write LegacyDrawingHF
   *
   * @param	PHPExcel_Shared_XMLWriter		$objWriter		XML Writer
   * @param	PHPExcel_Worksheet				$pSheet			Worksheet
   * @throws	PHPExcel_Writer_Exception
   */
  private function _writeLegacyDrawingHF(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Worksheet $pSheet = null) {

    // If sheet contains images, add the relationships
    if (count($pSheet
      ->getHeaderFooter()
      ->getImages()) > 0) {
      $objWriter
        ->startElement('legacyDrawingHF');
      $objWriter
        ->writeAttribute('r:id', 'rId_headerfooter_vml1');
      $objWriter
        ->endElement();
    }
  }

}

Classes

Name	Description
PHPExcel_Writer_Excel2007_Worksheet	PHPExcel_Writer_Excel2007_Worksheet