19:50:08 Create new PHPExcel object<br />19:50:08 Set document properties<br />19:50:08 Add data<br />19:50:08 Set data validation<br />19:50:08 Write to Excel2007 format<br />19:50:08 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0101 seconds<br />19:50:08 Current memory usage: 2 MB<br />19:50:08 Peak memory usage: 2 MB<br />19:50:08 Done writing file<br />File has been created in /var/www/mail_center/vendor/phpoffice/phpexcel/Examples<br />