15:01:29 Create new PHPExcel object
15:01:29 Set document properties
15:01:29 Add some data
15:01:29 Rename worksheet
15:01:29 Write to Excel2007 format
15:01:29 File written to 01simple.xlsx
Call time to write Workbook was 0.0025 seconds
15:01:29 Current memory usage: 1.5 MB
15:01:29 Write to Excel5 format
15:01:30 File written to 01simple.xls
Call time to write Workbook was 0.1140 seconds
15:01:30 Current memory usage: 2 MB
15:01:30 Peak memory usage: 2 MB
15:01:30 Done writing files
Files have been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples