18:37:29 Create new PHPExcel object
18:37:29 Set document properties
18:37:29 Add data
18:37:29 Set data validation
18:37:29 Write to Excel2007 format
18:37:29 File written to 15datavalidation.xlsx
Call time to write Workbook was 0.0025 seconds
18:37:29 Current memory usage: 2 MB
18:37:29 Peak memory usage: 2 MB
18:37:29 Done writing file
File has been created in /var/www/html/vendor/phpoffice/phpexcel/Examples