Conversion from Rhino to IAM is not supported yet :(

Rhinoceros (typically abbreviated Rhino, or Rhino3D) is a commercial 3D computer graphics and computer-aided design (CAD) application software. Rhinoceros geometry is based on the NURBS mathematical model, which focuses on producing mathematically precise representation of curves and freeform surfaces in computer graphics (as opposed to polygon mesh-based applications).

Rhinoceros is used in processes of computer-aided design (CAD), computer-aided manufacturing (CAM), rapid prototyping, 3D printing and reverse engineering in industries including architecture, industrial design (e.g. automotive design, watercraft design), product design (e.g. jewelry design) as well as for multimedia and graphic design.

The Rhinoceros file format (.3DM) is useful for the exchange of NURBS geometry. The Rhino developers started the openNURBS Initiative to provide computer graphics software developers the tools to accurately transfer 3-D geometry between applications. An open-source toolkit, openNURBS includes the 3DM file format specification, documentation, C++ source code libraries and .NET 2.0 assemblies to read and write the file format, on supported platforms (Windows, Windows x64, Mac, and Linux).

An IAM file is an assembly model created with Inventor CAD and engineering software by Autodesk.

The IAM format comprises parts and subassemblies linked through assembly relationships. A subassembly in an IAM file is a self-contained unit with its collection of parts.

The .iam extension of an Autodesk Inventor Assembly Data File can be viewed using the following software: Autodesk Inventor / Inventor View, and Spaceclaim Engineer software. Autodesk Viewer web application and Fusion 360 integrated CAD / CAM / CAE software environment can import and render an assembly model created with Inventor.