12:37:50 Create new PHPExcel object
12:37:50 Set document properties
12:37:50 Add data
12:37:50 Set data validation
12:37:50 Write to Excel2007 format
12:37:50 File written to 15datavalidation.xlsx
Call time to write Workbook was 0.0242 seconds
12:37:50 Current memory usage: 4 MB
12:37:50 Peak memory usage: 4 MB
12:37:50 Done writing file
File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples