19:44:39 Write to Excel2007 format<br />19:44:39 File written to 33chartcreate-bar-stacked.xlsx<br />19:44:39 Peak memory usage: 2 MB<br />19:44:39 Done writing file<br />File has been created in /var/www/html/unhlsims/vendor/phpoffice/phpexcel/Examples<br />