11:29:06 Create new PHPExcel object<br />11:29:06 Set document properties<br />11:29:06 Add data<br />11:29:06 Set data validation<br />11:29:06 Write to Excel2007 format<br />11:29:06 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0027 seconds<br />11:29:06 Current memory usage: 2 MB<br />11:29:06 Peak memory usage: 2 MB<br />11:29:06 Done writing file<br />File has been created in /var/www/html/vendor/phpoffice/phpexcel/Examples<br />