07:28:18 Create new PHPExcel object<br />07:28:18 Set document properties<br />07:28:18 Add data<br />07:28:18 Set data validation<br />07:28:18 Write to Excel2007 format<br />07:28:18 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0031 seconds<br />07:28:18 Current memory usage: 2 MB<br />07:28:18 Peak memory usage: 2 MB<br />07:28:18 Done writing file<br />File has been created in /home/webdemoo/se.webdemo258.io.vn/cms-demo-new/vendor/phpoffice/phpexcel/Examples<br />