Conversion from Unigraphics to Navisworks is not supported yet :(

Unigraphics is a former name for Siemens NX, an advanced CAD/CAM/CAE software application suite. However, veterans are still using the Unigraphics name.

In 2002, the new version of Siemens Unigraphics, merged with I-DEAS software, was released and called NX, which means "Next Generation". In fact, it was the last version of the software released under the Unigraphics name. All further releases became known as NX. So the addition of I-DEAS functionality to the core code of the Unigraphics has become the basis of the existing NX product line.

Siemens NX / Unigraphics use a .prt extension, which contains 3D CAD parts.

Navisworks® project review software by Autodesk is used to improve the coordination of BIM and AEC projects. Its main function is to define clashes, interferences, and similar conflicts within the design stage and to resolve them.

Navisworks® combines all the data related to the project and lets all relevant parties explore and review it. The software brings together design and engineering data, construction schedules, animated models, and simulation. It allows users to perform comprehensive analysis and accurate control of complex construction works.