ดึงข้อมูลจากดาต้าเบส mysql ลงใน excel ไม่ได้ครับ มัน error

<?
		$objConnect = mysql_connect("localhost","root","1234") or die("Error Connect to Database");
		$objDB = mysql_select_db("attendance");
		$strSQL = "SELECT * FROM leaves";
		$objQuery = mysql_query($strSQL);
		if($objQuery)
		{			
				//*** Get Document Path ***//
				$strPath = realpath(basename(getenv($_SERVER["SCRIPT_NAME"]))); // C:/AppServ/www/myphp
				//*** Excel Document Root ***//
				$strFileName = "C:/AppServ/www/attendance/MyXls/MyExcel.xls";
				//*** Connect to Excel.Application ***//
				$xlApp = new COM("Excel.Application");
				$xlBook = $xlApp->Workbooks->Add();
				//*** Create Sheet 1 ***//
				$xlBook->Worksheets(1)->Name = "My Customer";							
				$xlBook->Worksheets(1)->Select;
				//*** Header ***//
				$xlApp->ActiveSheet->Cells(1,1)->Value = "lev_id";
				$xlApp->ActiveSheet->Cells(1,2)->Value = "lev_emp_id";
				$xlApp->ActiveSheet->Cells(1,3)->Value = "lev_cod_id";
				$xlApp->ActiveSheet->Cells(1,4)->Value = "lev_start_date ";
				$xlApp->ActiveSheet->Cells(1,5)->Value = "lev_end_date ";
				$xlApp->ActiveSheet->Cells(1,6)->Value = "lev_start_time";
				//***********//		
				$intRows = 2;
				while($objResult = mysql_fetch_array($objQuery))
				{				
					//*** Detail ***//
					$xlApp->ActiveSheet->Cells($intRows,1)->Value = $objResult["lev_id"];
					$xlApp->ActiveSheet->Cells($intRows,2)->Value = $objResult["lev_emp_id"];
					$xlApp->ActiveSheet->Cells($intRows,3)->Value = $objResult["lev_cod_id"];
					$xlApp->ActiveSheet->Cells($intRows,4)->Value = $objResult["lev_start_date"];
					$xlApp->ActiveSheet->Cells($intRows,5)->Value = $objResult["lev_end_date"];
					$xlApp->ActiveSheet->Cells($intRows,6)->Value = $objResult["lev_start_time"];
					$intRows++;
				}
				@unlink($strFileName); //*** Delete old files ***//	
				$xlBook->SaveAs($strPath."/".$strFileName); //*** Save to Path ***//
				//$xlBook->SaveAs(realpath($strFileName)); //*** Save to Path ***//
				//*** Close & Quit ***//
				$xlApp->Application->Quit();
				$xlApp = null;
				$xlBook = null;
				$xlSheet1 = null;
		}
		mysql_close($objConnect);	
?>
Excel Created <a href="<?=$strFileName?>">Click here</a> to Download.