10:51:31 Write to Excel2007 format<br />10:51:31 File written to 33chartcreate-bar-stacked.xlsx<br />10:51:31 Peak memory usage: 6 MB<br />10:51:31 Done writing file<br />File has been created in /var/www/html/laravel/vendor/phpoffice/phpexcel/Examples<br />