07:39:12 Create new PHPExcel object
07:39:12 Set document properties
07:39:12 Add some data
07:39:12 Rename worksheet
07:39:12 Write to Excel2007 format
07:39:12 File written to 01simple.xlsx
Call time to write Workbook was 0.0019 seconds
07:39:12 Current memory usage: 1.5 MB
07:39:12 Write to Excel5 format
07:39:12 File written to 01simple.xls
Call time to write Workbook was 0.0018 seconds
07:39:12 Current memory usage: 2 MB
07:39:12 Peak memory usage: 2 MB
07:39:12 Done writing files
Files have been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples