21:17:11 Create new PHPExcel object
21:17:11 Set document properties
21:17:11 Add data
21:17:11 Set data validation
21:17:11 Write to Excel5 format

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21:17:11 File written to 15datavalidation-xls.xls
Call time to write Workbook was 0.0256 seconds
21:17:11 Current memory usage: 6 MB
21:17:11 Peak memory usage: 6 MB
21:17:11 Done writing file
File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples