21:39:44 Write to Excel2007 format<br />21:39:44 File written to 33chartcreate-bar-stacked.xlsx<br />21:39:44 Peak memory usage: 2 MB<br />21:39:44 Done writing file<br />File has been created in /var/www/html/IDEE/vendor/phpoffice/phpexcel/Examples<br />