12:54:39 Create new PHPExcel object<br />12:54:39 Set document properties<br />12:54:39 Add data<br />12:54:39 Set data validation<br />12:54:39 Write to Excel2007 format<br />12:54:39 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0121 seconds<br />12:54:39 Current memory usage: 6 MB<br />12:54:39 Peak memory usage: 6 MB<br />12:54:39 Done writing file<br />File has been created in /var/www/dolphin/vendor/phpoffice/phpexcel/Examples<br />