17:23:40 Create new PHPExcel object
17:23:40 Set document properties
17:23:40 Add data
17:23:40 Set data validation
17:23:40 Write to Excel5 format

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17:23:40 File written to 15datavalidation-xls.xls
Call time to write Workbook was 0.0166 seconds
17:23:40 Current memory usage: 4 MB
17:23:40 Peak memory usage: 4 MB
17:23:40 Done writing file
File has been created in /var/www/html/Quetzal/vendor/phpoffice/phpexcel/Examples