14:44:29 Write to Excel2007 format<br />14:44:29 File written to 33chartcreate-bar-stacked.xlsx<br />14:44:29 Peak memory usage: 6.5 MB<br />14:44:29 Done writing file<br />File has been created in /var/www/kd/vendor/phpoffice/phpexcel/Examples<br />