19:15:22 Create new PHPExcel object
19:15:22 Set document properties
19:15:22 Add data
19:15:22 Set data validation
19:15:22 Write to Excel5 format

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19:15:22 File written to 15datavalidation-xls.xls
Call time to write Workbook was 0.0249 seconds
19:15:22 Current memory usage: 6 MB
19:15:22 Peak memory usage: 6 MB
19:15:22 Done writing file
File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples