19:09:38 Create new PHPExcel object
19:09:38 Set document properties
19:09:38 Add data
19:09:38 Set data validation
19:09:38 Write to Excel2007 format
19:09:38 File written to 15datavalidation.xlsx
Call time to write Workbook was 0.0234 seconds
19:09:38 Current memory usage: 6 MB
19:09:38 Peak memory usage: 6 MB
19:09:38 Done writing file
File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples