How to Convert Between Rhino Versions
Everything you need to know about converting .3dm files between Rhino versions, up and down.
Converting down (newer → older)
This is the common case: a collaborator on Rhino 6 or 7 needs to open your Rhino 8 file. Use RhinoFileConverter to rewrite the file in the older format — it takes seconds and preserves your geometry.
Converting up (older → newer)
No conversion needed! Every Rhino release opens all older .3dm files natively. Just open the file and save it to store it in the newer format.
Batch conversions
Need to convert many files or automate conversions via an API? Our Business and Enterprise plans are built for teams — see the pricing page.