14:33:42 Create new PHPExcel object<br />14:33:42 Set document properties<br />14:33:42 Add data<br />14:33:42 Set data validation<br />14:33:42 Write to Excel2007 format<br />14:33:42 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0032 seconds<br />14:33:42 Current memory usage: 2 MB<br />14:33:42 Peak memory usage: 2 MB<br />14:33:42 Done writing file<br />File has been created in /home/webdemoo/se.webdemo258.io.vn/cms-demo/vendor/phpoffice/phpexcel/Examples<br />