Hi @Anonymous,
I have no idea what the extension possibilities in 2020.
But what I do know is that the following file formats to be read in Revit:
CAD formats: DGN, DWF™, DWG™, DXF™, IFC, SAT, and SKP
Image formats: BMP, PNG, JPG, AVI, PAN, IVR, TGA, and TIF
Other formats: ODBC, HTML, TXT, MDB, XLS, and gbXML
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Best regards,
Michiel Peperkamp
Cadac Group AEC
Cadac Group
Platinum Partner