11:23:43 Create new PHPExcel object
11:23:43 Set document properties
11:23:43 Add some data
11:23:43 Rename worksheet
11:23:43 Write to Excel2007 format
11:23:43 File written to 01simple.xlsx
Call time to write Workbook was 0.0022 seconds
11:23:43 Current memory usage: 1.5 MB
11:23:43 Write to Excel5 format
11:23:43 File written to 01simple.xls
Call time to write Workbook was 0.1472 seconds
11:23:43 Current memory usage: 2 MB
11:23:43 Peak memory usage: 2 MB
11:23:43 Done writing files
Files have been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples