13:25:17 Create new PHPExcel object<br />13:25:17 Set document properties<br />13:25:17 Add data<br />13:25:17 Set data validation<br />13:25:17 Write to Excel2007 format<br />13:25:17 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0057 seconds<br />13:25:17 Current memory usage: 2 MB<br />13:25:17 Peak memory usage: 2 MB<br />13:25:17 Done writing file<br />File has been created in /var/www/billing.andrewpeng.net/vendor/turbo124/phpexcel/Examples<br />