22:02:53 Create new PHPExcel object
22:02:53 Set document properties
22:02:53 Add some data
22:02:53 Rename worksheet
22:02:53 Write to Excel2007 format
22:02:53 File written to 01simple.xlsx
Call time to write Workbook was 0.0076 seconds
22:02:53 Current memory usage: 1.5 MB
22:02:53 Write to Excel5 format
22:02:53 File written to 01simple.xls
Call time to write Workbook was 0.0018 seconds
22:02:53 Current memory usage: 2 MB
22:02:53 Peak memory usage: 2 MB
22:02:53 Done writing files
Files have been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples