08:20:38 Create new PHPExcel object<br />08:20:38 Set document properties<br />08:20:38 Add data<br />08:20:38 Set data validation<br />08:20:38 Write to Excel2007 format<br />08:20:38 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0156 seconds<br />08:20:38 Current memory usage: 6 MB<br />08:20:38 Peak memory usage: 6 MB<br />08:20:38 Done writing file<br />File has been created in /var/www/html/add/qilan/laravel/vendor/phpoffice/phpexcel/Examples<br />