12:37:58 Create new PHPExcel object<br />12:37:58 Set document properties<br />12:37:58 Add data<br />12:37:58 Set data validation<br />12:37:58 Write to Excel2007 format<br />12:37:58 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0023 seconds<br />12:37:58 Current memory usage: 2 MB<br />12:37:58 Peak memory usage: 2 MB<br />12:37:58 Done writing file<br />File has been created in /var/www/html/vendor/phpoffice/phpexcel/Examples<br />