12:53:09 Create new PHPExcel object
12:53:09 Set document properties
12:53:09 Add data
12:53:09 Set data validation
12:53:09 Write to Excel5 format

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12:53:09 File written to 15datavalidation-xls.xls
Call time to write Workbook was 0.0270 seconds
12:53:09 Current memory usage: 6 MB
12:53:09 Peak memory usage: 6 MB
12:53:09 Done writing file
File has been created in D:\dev\sklad\vendor\phpoffice\phpexcel\Examples