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3DM

A 3DM file is a native file format for 3D models in Rhinoceros CAD application software. It contains surface, point and curve information.

3DM files can be exported in both NURBS (non-uniform rational B-spline) and polygon mesh representations, making it possible for other CAD / CAM / CAE / graphic design software to edit those models.

In addition to Rhino CAD software, 3DM files can be opened with Autodesk Fusion 360.

PAR is a CAD format that generates 3D object layouts. Solid Edge, a 3D CAD system from Siemens Digital Industries Software, uses the .par extension for its part files, including their geometric forms, appearance, and structural elements.

The PAR file can be combined with other Solid Edge parts to a single assembly (ASM file).

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