17:23:14 Create new PHPExcel object
17:23:14 Set document properties
17:23:14 Add some data
17:23:14 Rename worksheet
17:23:14 Write to Excel2007 format
17:23:14 File written to 01simple.xlsx
Call time to write Workbook was 0.0054 seconds
17:23:14 Current memory usage: 1.5 MB
17:23:14 Write to Excel5 format
17:23:14 File written to 01simple.xls
Call time to write Workbook was 0.0019 seconds
17:23:14 Current memory usage: 2 MB
17:23:14 Peak memory usage: 2 MB
17:23:14 Done writing files
Files have been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples