19:47:48 Create new PHPExcel object
19:47:48 Set document properties
19:47:48 Add data
19:47:48 Set data validation
19:47:48 Write to Excel5 format

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19:47:48 File written to 15datavalidation-xls.xls
Call time to write Workbook was 0.0068 seconds
19:47:48 Current memory usage: 2 MB
19:47:48 Peak memory usage: 2 MB
19:47:48 Done writing file
File has been created in /home/autourdey/invoice/vendor/phpoffice/phpexcel/Examples