สอบถามเรื่องการ export excel ให้ user ไม่สามารถแก้ไขข้อมูลได้

objPHPExcel->getSecurity()->setLockWindows(true);
$objPHPExcel->getSecurity()->setLockStructure(true);
$objPHPExcel->getSecurity()->setWorkbookPassword("PHPExcel");

$objPHPExcel->getActiveSheet()->getProtection()->setPassword('PHPExcel');
$objPHPExcel->getActiveSheet()->getProtection()->setSheet(true); 

$objPHPExcel->getActiveSheet()->getProtection()->setSort(true);
$objPHPExcel->getActiveSheet()->getProtection()->setInsertRows(true);
$objPHPExcel->getActiveSheet()->getProtection()->setFormatCells(true);

<?php 
	
	//*** Get Document Path ***//
	$strPath = realpath(basename(getenv($_SERVER["SCRIPT_NAME"]))); // C:/AppServ/www/myphp

	$xlEdgeLeft = 7;
	$xlEdgeTop = 8;
	$xlEdgeBottom = 9;
	$xlEdgeRight = 10;


	//*** Excel Open Document ***//
	$strOpenDoc = "Excel.xls";

	//*** Excel Document Root ***//
	$strFileName = "MyXls/MyExcel.xls";

	//*** Connect to Excel.Application ***//
	$xlApp = new COM("Excel.Application");
	$xlBook = $xlApp->Workbooks->Open($strPath."/".$strOpenDoc);
	$xlSheet1 = $xlBook->Worksheets(1);
	$xlApp->Application->Visible = False;	


	//*** Sheet 1 ***//
	$xlSheet1->Name = "My Sheet1";

	//*** Write text to Row 4 Column 1 ***//	แถว-คอลัมป์	
	$xlApp->ActiveSheet->Cells(2,11)->Value =$objResult333['bookingpay'];
	$xlApp->ActiveSheet->Cells(3,11)->Value =$objResult333['daypay'];
	

	@unlink($strFileName); //*** Delete old files ***//	

	$xlBook->SaveAs($strPath."/".$strFileName); //*** Save to Path ***//

	//*** Close & Quit ***//
	$xlApp->Application->Quit();
	$xlApp = null;
	$xlBook = null;
	$xlSheet1 = null;
?>
Excel Created <a href="<?php echo $strFileName?>">Click here</a> to Download.
</body>