23:25:06 Create new PHPExcel object
23:25:06 Set document properties
23:25:06 Add data
23:25:06 Set data validation
23:25:06 Write to Excel5 format

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23:25:06 File written to 15datavalidation-xls.xls
Call time to write Workbook was 0.2775 seconds
23:25:06 Current memory usage: 2 MB
23:25:06 Peak memory usage: 2 MB
23:25:06 Done writing file
File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples