22:35:35 Create new PHPExcel object
22:35:35 Set document properties
22:35:35 Add data
22:35:35 Set data validation
22:35:35 Write to Excel5 format

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22:35:35 File written to 15datavalidation-xls.xls
Call time to write Workbook was 0.0256 seconds
22:35:35 Current memory usage: 6 MB
22:35:35 Peak memory usage: 6 MB
22:35:35 Done writing file
File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples