15:29:36 Create new PHPExcel object<br />15:29:36 Set document properties<br />15:29:36 Add data<br />15:29:36 Set data validation<br />15:29:36 Write to Excel5 format<br />15:29:36 File written to 15datavalidation-xls.xls<br />Call time to write Workbook was 0.0323 seconds<br />15:29:36 Current memory usage: 6 MB<br />15:29:36 Peak memory usage: 6 MB<br />15:29:36 Done writing file<br />File has been created in D:\wwwroot\yx\base_admin_welcome_new_student\vendor\phpoffice\phpexcel\Examples<br />