The application is intended to be used with Revit models. Models imported to Revit from some other applications and formats may require retracing in Revit and preparation before they can be analyzed as they will not generate an Energy Model in Revit (Analytical Surfaces and Spaces which are required).
While work is ongoing to research and support models from other modelling software, however FenestraPro is primarily an Autodesk Revit application.
