How to convert files from KOMPAS-3D
to Rhino?

KOMPAS-3D is a flexible 3D modeling system that allows creating models by several methods, including the following ones:

Bottom-up modeling using finished components. Top-down modeling by designing components to match specific designs. Modeling based on layout drawings, such as kinematic diagrams. Or any combination of these modeling methods. These approaches allow creating editable associative models easily.

The KOMPAS-3D system has powerful functions for managing projects of thousands of sub-assemblies, parts, and standard library products. It supports all the capabilities of 3D solids and surface modeling that have become the standard among medium-level CAD/CAM programs.

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).