08:24:33 Create new PHPExcel object<br />08:24:33 Set document properties<br />08:24:33 Add data<br />08:24:33 Set data validation<br />08:24:33 Write to Excel2007 format<br />08:24:33 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0219 seconds<br />08:24:33 Current memory usage: 6 MB<br />08:24:33 Peak memory usage: 6 MB<br />08:24:33 Done writing file<br />File has been created in /var/www/html/lcyj_sub/ylst/laravel/vendor/phpoffice/phpexcel/Examples<br />