Conversion from Unigraphics to AutoCAD 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.

AutoCAD is a software application for CAD and drafting built on Autodesk’s proprietary kernel named Shapemanager. Developed by Autodesk, AutoCAD was first to run on microcomputers with internal graphics controllers. As it is available on thirteen different languages, AutoCAD is widely used by architects, project managers engineers, graphic designers, city planners and other professionals all over the globe.

AutoCAD enables professionals to draft and edit 2D geometry and 3D models with solids, surfaces and meshes, annotate drawings with text, leaders, dimensions and tables, customize wit add-on apps and API.

There are different versions of AutoCAD. AutoCAD LT is the lower cost version, with limited capabilities. AutoCAD 360 is an account-based mobile and web application. Its users can view, edit and share files via mobile device and web. To add to it, students can use free student versions of AutoCAD, which are almost identical to the full commercial one.