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Siemens NX Viewer
open and convert PRT files

CATIA Siemens-NX CREO SolidWorks Solid Edge Inventor Rhino JT STEP X_T DWG-DXF IGES-SAT-VDA 3MF-STL PLY-3DS-WRL-OBJ

Was are PRT files?

  • The file extension PRT is used by several programs. In the CAD/CAM area, these are native 3D models from either Siemens NX or Creo. Creo files can often be recognized by a number after the file extension (*.prt.1, *.prt.2).
  • PRT files from Siemens NX can contain 3D components, 3D assemblies, 2D drawings and product manufacturing information (PMI).
  • One Siemens NX assembly file is linked to at least one but usually more than one PRT part and often also to other PRT assemblies.
  • Siemens NX is a CAD/CAM/CAE system and was developed back in 1978 by Unigraphics Solutions (UGS). UGS was acquired by Siemens in 2007.

Siemens NX viewer for PRT part and assemblies

PRT File Versions

New releases of Siemens NX are published regularly. Newer releases have the version scheme 2206, 2212, 2306, whereby 2306, for example, stands for June 2023. The current version is 2312. (02/2024)

Older releases from 2019 to 2021 have the designations NX 1847 to NX 2007. Prior to that, they were simply version numbers NX to NX 12. Until 2001, the designations were UG/Unigraphics 3.0 to 18.0.

As of 2013 or NX 9, Siemens PLM Software only offers the software as a 64-bit version. The MacOS support has been discontinued with NX 12.

Additional Native Siemens NX File Formats

In contrast to most other CAD systems, NX has no individual file extensions for parts, assemblies and drawings.

Worth mentioning is the Parasolid modeling kernel used by Siemens NX. Parasolid X_T and X_B files are 3D exchange formats without a modification history, but are the first choice for exchanging 3D models between CAD/CAM programs with a Parasolid core such as Siemens NX, SolidWorks and Solid Edge.

How do I Open Siemens NX PRT files?

Typically, a Siemens NX installation is used for this. Using CAD/CAM software with a Siemens NX interface is also possible. PRT files can be opened in SolidWorks and Solid Edge, for example.

Even if there are no free PRT viewers or NX viewers, CAD viewers are a cheap alternative compared to a CAD system. The 3D-Tool CAD viewer opens all Siemens NX file versions listed above and can be tested free of charge for 14 days.

How do I Convert Siemens NX PRT Files?

If you do not have CAD software with a Siemens NX interface, the design must be exported from Siemens NX to a common 3D exchange format, such as STEP.

Converting Siemen NX PRT to STEP is also possible with a 3D converter or CAD converter.

3D Tool Premium includes the 3D NativeCAD Converter. In addition to native Siemens NX models, this converts models from many common CAD systems into the 3D exchange formats STEP, IGES, SAT and Parasolid X_T supported by many CAD/CAM programs.

Test the Siemens NX Viewer and Siemens NX Converter

3D-Tool is a CAD viewer with many native CAD interfaces, including Siemens NX. 3D-Tool offers professional measuring, demolding and wall thickness analysis.

  • Open and publish Siemens NX PRT files (3D) for the 3D-Tool Free Viewer or as 3D-PDF
  • Open Siemens NX PRT files (3D) and save as STL, 3DS, PLY, WRL, OBJ, or PLY
  • Convert Siemens NX PRT files (3D) to STEP, IGES, VDA, SAT and X_T

Free and non-binding 14-day trial with all functions, the Siemens NX interfaces and the 3D-Native CAD Converter. The trial key activates all 3D interfaces, such as CATIA, SolidWorks, Inventor, STEP, SAT, Parasolid.

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