19:30:35 Create new PHPExcel object<br />19:30:35 Set document properties<br />19:30:35 Add data<br />19:30:35 Set data validation<br />19:30:35 Write to Excel2007 format<br />19:30:35 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0024 seconds<br />19:30:35 Current memory usage: 2 MB<br />19:30:35 Peak memory usage: 2 MB<br />19:30:35 Done writing file<br />File has been created in /var/www/html/vendor/phpoffice/phpexcel/Examples<br />