14:57:31 Create new PHPExcel object<br />14:57:31 Set document properties<br />14:57:31 Add data<br />14:57:31 Set data validation<br />14:57:31 Write to Excel2007 format<br />14:57:31 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0092 seconds<br />14:57:31 Current memory usage: 6 MB<br />14:57:31 Peak memory usage: 6 MB<br />14:57:31 Done writing file<br />File has been created in /var/www/dolphin/vendor/phpoffice/phpexcel/Examples<br />