12:36:46 Create new PHPExcel object
12:36:46 Set document properties
12:36:46 Add some data
12:36:46 Rename worksheet
12:36:46 Write to Excel2007 format
12:36:46 File written to 01simple.xlsx
Call time to write Workbook was 0.0019 seconds
12:36:46 Current memory usage: 1.5 MB
12:36:46 Write to Excel5 format
12:36:46 File written to 01simple.xls
Call time to write Workbook was 0.1012 seconds
12:36:46 Current memory usage: 2 MB
12:36:46 Peak memory usage: 2 MB
12:36:46 Done writing files
Files have been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples