16:37:04 Create new PHPExcel object
16:37:04 Set document properties
16:37:04 Add data
16:37:04 Set data validation
16:37:04 Write to Excel5 format

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16:37:04 File written to 15datavalidation-xls.xls
Call time to write Workbook was 0.0249 seconds
16:37:04 Current memory usage: 6 MB
16:37:04 Peak memory usage: 6 MB
16:37:04 Done writing file
File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples