20:12:56 Write to Excel2007 format<br />20:12:56 File written to 33chartcreate-bar-stacked.xlsx<br />20:12:56 Peak memory usage: 6.5 MB<br />20:12:56 Done writing file<br />File has been created in /var/www/hobn/vendor/phpoffice/phpexcel/Examples<br />