private function _writePageLayoutView(){
		$record	  = 0x088B;			   // Record identifier
		$length	  = 0x0010;			   // Bytes to follow

		$rt         = 0x088B; // 2
		$grbitFrt   = 0x0000; // 2
		$reserved   = 0x0000000000000000; // 8
		$wScalvePLV = $this->_phpSheet->getSheetView()->getZoomScale(); // 2

		// The options flags that comprise $grbit
		if($this->_phpSheet->getSheetView()->getView() == PHPExcel_Worksheet_SheetView::SHEETVIEW_PAGE_LAYOUT){
			$fPageLayoutView   = 1;
		} else {
			$fPageLayoutView   = 0;
		}
		$fRulerVisible     = 0;
		$fWhitespaceHidden = 0;

		$grbit      = $fPageLayoutView; // 2
		$grbit		|= $fRulerVisible	   << 1;
		$grbit		|= $fWhitespaceHidden  << 3;

		$header	  = pack("vv", $record, $length);
		$data	  = pack("vvVVvv", $rt, $grbitFrt, 0x00000000, 0x00000000, $wScalvePLV, $grbit);
		$this->_append($header . $data);
	}