16:12:11 Create new PHPExcel object<br />16:12:11 Set document properties<br />16:12:11 Add data<br />16:12:11 Set data validation<br />16:12:11 Write to Excel2007 format<br />16:12:11 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0130 seconds<br />16:12:11 Current memory usage: 6 MB<br />16:12:11 Peak memory usage: 6 MB<br />16:12:11 Done writing file<br />File has been created in /var/www/html/laravel/vendor/phpoffice/phpexcel/Examples<br />