Sharing 3D drawings for architects and interior designers (chairs, ...)

 From:  Franz
9830.1 
Hallo!

Which export formats should be passed on so that architects can use the drawings in their plans?
As far as I know, work is often done in AutoCad, ArchiCad, VectorWorks etc.

Are there 2 or 3 formats to cover all different systems?

Thanks for the advice!

Franz