11:57:32 Write to Excel2007 format<br />11:57:32 File written to 33chartcreate-bar-stacked.xlsx<br />11:57:32 Peak memory usage: 4 MB<br />11:57:32 Done writing file<br />File has been created in /var/www/laravel-wms/vendor/phpoffice/phpexcel/Examples<br />