Able to import/export native Archicad files.
Not that I know how to use it(Archicad), but as I try keep up with Revit new features, I do the same with Archicad.
I see Archicad (new in version 25) can now import/export rvt and rfa files. ref: RFA and RVT Exchange: Native to ARCHICAD | User Guide Page | GRAPHISOFT Help Center
Revit should be able to do the same.
related:
stp/step files: Getting a STEP (.stp) file into Revit - Autodesk Community
dgn/i-dgn: Proper DGN Import Export - Autodesk Community
