14:54:15 Write to Excel2007 format<br />14:54:15 File written to 33chartcreate-bar-stacked.xlsx<br />14:54:15 Peak memory usage: 4 MB<br />14:54:15 Done writing file<br />File has been created in /home/wtogroup/wtogroup.com/vendor/phpoffice/phpexcel/Examples<br />