08:16:19 Create new PHPExcel object<br />08:16:19 Set document properties<br />08:16:19 Add data<br />08:16:19 Set data validation<br />08:16:19 Write to Excel2007 format<br />08:16:19 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0034 seconds<br />08:16:19 Current memory usage: 2 MB<br />08:16:19 Peak memory usage: 2 MB<br />08:16:19 Done writing file<br />File has been created in /home/webdemoo/se.webdemo258.io.vn/cms-demo/vendor/phpoffice/phpexcel/Examples<br />