21:07:07 Write to Excel2007 format<br />21:07:07 File written to 33chartcreate-bar-stacked.xlsx<br />21:07:07 Peak memory usage: 6.5 MB<br />21:07:07 Done writing file<br />File has been created in /var/www/skav909/vendor/phpoffice/phpexcel/Examples<br />