12:10:50 Create new PHPExcel object<br />12:10:50 Set document properties<br />12:10:50 Add data<br />12:10:50 Set data validation<br />12:10:50 Write to Excel2007 format<br />12:10:50 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0070 seconds<br />12:10:50 Current memory usage: 4 MB<br />12:10:50 Peak memory usage: 4 MB<br />12:10:50 Done writing file<br />File has been created in /var/www/html/examcontroller-web/vendor/phpoffice/phpexcel/Examples<br />