11:53:23 Write to Excel2007 format<br />11:53:23 File written to 33chartcreate-bar-stacked.xlsx<br />11:53:23 Peak memory usage: 6 MB<br />11:53:23 Done writing file<br />File has been created in /var/www/laravel-wms/vendor/phpoffice/phpexcel/Examples<br />