18:19:14 Write to Excel2007 format<br />18:19:14 File written to 33chartcreate-bar-stacked.xlsx<br />18:19:14 Peak memory usage: 6 MB<br />18:19:14 Done writing file<br />File has been created in /home/boapp/public_html/vendor/phpoffice/phpexcel/Examples<br />