12:07:51 Create new PHPExcel object<br />12:07:51 Set document properties<br />12:07:51 Add data<br />12:07:51 Set data validation<br />12:07:51 Write to Excel2007 format<br />12:07:51 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0041 seconds<br />12:07:51 Current memory usage: 2 MB<br />12:07:51 Peak memory usage: 2 MB<br />12:07:51 Done writing file<br />File has been created in /home/webdemoo/se.webdemo258.io.vn/cms-demo-new/vendor/phpoffice/phpexcel/Examples<br />