09:40:22 Create new PHPExcel object<br />09:40:22 Set document properties<br />09:40:22 Add data<br />09:40:22 Set data validation<br />09:40:22 Write to Excel2007 format<br />09:40:22 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0245 seconds<br />09:40:22 Current memory usage: 2 MB<br />09:40:22 Peak memory usage: 2 MB<br />09:40:22 Done writing file<br />File has been created in /var/www/billing.andrewpeng.net/vendor/turbo124/phpexcel/Examples<br />