22:52:19 Create new PHPExcel object<br />22:52:19 Set document properties<br />22:52:19 Add data<br />22:52:19 Set data validation<br />22:52:19 Write to Excel2007 format<br />22:52:19 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0017 seconds<br />22:52:19 Current memory usage: 1.75 MB<br />22:52:19 Peak memory usage: 1.75 MB<br />22:52:19 Done writing file<br />File has been created in /var/www/nsst/vendor/phpoffice/phpexcel/Examples<br />