23:39:36 Write to Excel2007 format<br />23:39:36 File written to 33chartcreate-bar-stacked.xlsx<br />23:39:36 Peak memory usage: 6.5 MB<br />23:39:36 Done writing file<br />File has been created in /var/www/html/demobehappy/mbinv/vendor/phpoffice/phpexcel/Examples<br />