18:33:21 Create new PHPExcel object
18:33:21 Set document properties
18:33:21 Add some data
18:33:21 Rename worksheet
18:33:21 Write to Excel2007 format
18:33:21 File written to 01simple.xlsx
Call time to write Workbook was 0.0055 seconds
18:33:21 Current memory usage: 1.5 MB
18:33:21 Write to Excel5 format
18:33:21 File written to 01simple.xls
Call time to write Workbook was 0.0018 seconds
18:33:21 Current memory usage: 2 MB
18:33:21 Peak memory usage: 2 MB
18:33:21 Done writing files
Files have been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples