10:11:38 Create new PHPExcel object
10:11:38 Set document properties
10:11:38 Add some data
10:11:38 Rename worksheet
10:11:38 Write to Excel2007 format
10:11:38 File written to 01simple.xlsx
Call time to write Workbook was 0.0023 seconds
10:11:38 Current memory usage: 1.5 MB
10:11:38 Write to Excel5 format
10:11:38 File written to 01simple.xls
Call time to write Workbook was 0.1508 seconds
10:11:38 Current memory usage: 2 MB
10:11:38 Peak memory usage: 2 MB
10:11:38 Done writing files
Files have been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples