02:20:07 Create new PHPExcel object<br />02:20:07 Set document properties<br />02:20:07 Add data<br />02:20:07 Set data validation<br />02:20:07 Write to Excel2007 format<br />02:20:07 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0036 seconds<br />02:20:07 Current memory usage: 2 MB<br />02:20:07 Peak memory usage: 2 MB<br />02:20:07 Done writing file<br />File has been created in /var/www/html/vendor/phpoffice/phpexcel/Examples<br />