21:00:57 Create new PHPExcel object<br />21:00:57 Set document properties<br />21:00:57 Add data<br />21:00:57 Set data validation<br />21:00:57 Write to Excel2007 format<br />21:00:57 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0018 seconds<br />21:00:57 Current memory usage: 2 MB<br />21:00:57 Peak memory usage: 2 MB<br />21:00:57 Done writing file<br />File has been created in /var/www/html/advancia_ci/vendor/phpoffice/phpexcel/Examples<br />