11:15:13 Create new PHPExcel object<br />11:15:13 Set document properties<br />11:15:13 Add data<br />11:15:13 Set data validation<br />11:15:13 Write to Excel2007 format<br />11:15:13 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0055 seconds<br />11:15:13 Current memory usage: 2 MB<br />11:15:13 Peak memory usage: 2 MB<br />11:15:13 Done writing file<br />File has been created in /var/www/billing.andrewpeng.net/vendor/turbo124/phpexcel/Examples<br />