The .rfa file extension is used for a proprietary data file format that was developed by Autodesk for one of their CAD software products. Classified as 3D graphics and CAD data files, these RFA files are also known as Autodesk Revit Architecture family files. The Revit Architecture software from Autodesk is a program for Windows PCs that allows users to create building and construction design projects.Files in the RFA format are part of a design model that has been created using the Autodesk Revit Architecture software. Compilations of design items for Revit Architecture models are also known as families. These .rfa files may be part of system families, which are stored within a Revit Architecture model. Hosted families can also include RFA files. These hosted families are external resources that can be stored outside a Revit Architecture model.Only the Autodesk Revit Architecture program can be used to open these .rfa files. It's best to leave these RFA files alone, in order for the associated Revit Architecture design model to continue working properly.
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