20:41:19 Create new PHPExcel object<br />20:41:19 Set document properties<br />20:41:19 Add data<br />20:41:19 Set data validation<br />20:41:19 Write to Excel2007 format<br />20:41:19 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0107 seconds<br />20:41:19 Current memory usage: 6 MB<br />20:41:19 Peak memory usage: 6 MB<br />20:41:19 Done writing file<br />File has been created in /var/www/mail_center/vendor/phpoffice/phpexcel/Examples<br />