NX is a CAD system developed by Unigraphics/Siemens PLM.

NX file extensions are
.prt (Part, Assembly, Drawing)
.fem (Finit Element)
.sim (simulation)
.afm (FEM Assembly)
.udf (user defined feature)

NX supported native or neutral formats are JT, IGES, DXF, DWG, STEP, Solid Edge, Parasolid, PLMXML.

CAD Interop distributes several Softwares to view, translate and validate NX files. Find below the list of our solutions compatible with NX:

3DViewStation CAD Translation Automation Server
3DViewStation Desktop for CAD visualization
3DViewStation for CAD visualization in Virtual Reality
Associative Drawing Translation with Proficiency
CAD Reuse for CAE with CADfix DX
CAD to mesh Simplification for VR/AR/MR with CADfix VIZ
CAD Translation, Healing and Repair with CADfix DX
Controlled & secured sharing of your CAD data without translation with VisShare
Online CAD visualization with 3DViewStation WebViewer
Proficiency feature-based CAD conversion
Simplify large CAD assemblies with CADfix PPS