Conversion from U3D to CATProduct is not supported yet :(

Universal 3D (U3D) is a compressed file format standard for 3D computer graphics data.

The format was defined by a special consortium called 3D Industry Forum that brought together a diverse group of companies and organizations, including Intel, Boeing, HP, Adobe Systems, Bentley Systems, Right Hemisphere and others whose main focus had been the promotional development of 3D graphics for use in various industries, specifically at this time manufacturing as well as construction and industrial plant design. The format was later standardized by Ecma International in August 2005 as ECMA-363.

The goal is a universal standard for three-dimensional data of all kinds, to facilitate data exchange. The consortium promoted also the development of an open source library for facilitating the adoption of the format.

The CATProduct file format is associated with CATIA V5 assembly format and is used to simulate industrial design processes.

Unlike CATPart files, CATProduct does not contain any geometric information, only model parts, and assembly structure information. Nevertheless, single CATPart files can be generated from CATProduct assembly.

The CATPart extension is compatible with Autodesk Inventor / Fusion 360, and Okino Computer PolyTrans software.