21:16:41 Write to Excel2007 format<br />21:16:41 File written to 33chartcreate-bar-stacked.xlsx<br />21:16:41 Peak memory usage: 6 MB<br />21:16:41 Done writing file<br />File has been created in /var/www/laravel-tms/vendor/phpoffice/phpexcel/Examples<br />