11:12:21 Create new PHPExcel object<br />11:12:21 Set document properties<br />11:12:21 Add data<br />11:12:21 Set data validation<br />11:12:21 Write to Excel2007 format<br />11:12:21 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0101 seconds<br />11:12:21 Current memory usage: 1.75 MB<br />11:12:21 Peak memory usage: 1.75 MB<br />11:12:21 Done writing file<br />File has been created in /var/www/dolphin/vendor/phpoffice/phpexcel/Examples<br />