19:23:45 Create new PHPExcel object<br />19:23:45 Set document properties<br />19:23:45 Add data<br />19:23:45 Set data validation<br />19:23:45 Write to Excel2007 format<br />19:23:45 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0019 seconds<br />19:23:45 Current memory usage: 2 MB<br />19:23:45 Peak memory usage: 2 MB<br />19:23:45 Done writing file<br />File has been created in /var/www/html/test/public/vendor/phpoffice/phpexcel/Examples<br />