20:57:07 Create new PHPExcel object<br />20:57:07 Set document properties<br />20:57:07 Add data<br />20:57:07 Set data validation<br />20:57:07 Write to Excel5 format<br />20:57:07 File written to 15datavalidation-xls.xls<br />Call time to write Workbook was 0.0024 seconds<br />20:57:07 Current memory usage: 2 MB<br />20:57:07 Peak memory usage: 2 MB<br />20:57:07 Done writing file<br />File has been created in /var/www/ched/vendor/phpoffice/phpexcel/Examples<br />