22:06:17 Create new PHPExcel object<br />22:06:17 Set document properties<br />22:06:17 Add data<br />22:06:17 Set data validation<br />22:06:17 Write to Excel2007 format<br />22:06:17 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0193 seconds<br />22:06:17 Current memory usage: 6 MB<br />22:06:17 Peak memory usage: 6 MB<br />22:06:17 Done writing file<br />File has been created in /var/www/html/vendor/phpoffice/phpexcel/Examples<br />