XLL+ 7 supports the Office Ribbon. You can now provide a more polished and flexible User Interface for your add-ins.
You can generate all the code required for a ribbon by checking the option Add a group to the ribbon in the XLL+ AppWizard.
Standard code generated by the XLL+ AppWizard makes it easy to support the Office Ribbon (when running under Excel 2007 or above) and to provide menus and/or toolbars when running under earlier versions of Excel.
For more about the Ribbon support in XLL+ 7 see The Ribbon in the User Guide.