STEP

ISO-10303 STEP product data file
File type: 3d graphics, CAD-CAM-CAE file
Files with step extension are quite often found as 3D model / part files saved in STEP (Standard for the Exchange of Product Data) format.
What is step file?
File type category:
3d graphics, CAD-CAM-CAE file
Date updated: June 21, 2025
File extension step is used for 3D files created in STEP (Standard for the Exchange of Product Data) format.
STEP is an ISO standard for the computer-interpretable representation and exchange of industrial product data. Typically STEP can be used to exchange data between CAD, Computer-aided manufacturing, Computer-aided engineering, Product Data Management/EDM and other CAx systems.
STEP is addressing product data from mechanical and electrical design, Geometric dimensioning and tolerancing, analysis and manufacturing, with additional information specific to various industries such as automotive, aerospace, building construction, ship, oil and gas, process plants and others.
MIME types:
application/step
How to open step file?
Most modern CAD programs support STEP format and are able to work with it.
How to convert step file?
Use any compatible tools to transform STEP data to other formats.
Suggested software to open step file:
Associated software actions with the step file
Software applications that can open step files:
AutoCAD (Microsoft Windows)
ZEMAX (Microsoft Windows)
TurboCAD (Microsoft Windows)
CATIA (Microsoft Windows)
TopSolid (Microsoft Windows)
Creo Parametric (Microsoft Windows)
Afanche 3D Viewer for Mac (Apple macOS / Mac OS X)
AutoCAD for Mac (Apple macOS / Mac OS X)
TurboCAD for Mac (Apple macOS / Mac OS X)
Software applications that can edit step files:
AutoCAD (Microsoft Windows)
ZEMAX (Microsoft Windows)
TurboCAD (Microsoft Windows)
CATIA (Microsoft Windows)
TopSolid (Microsoft Windows)
Creo Parametric (Microsoft Windows)
AutoCAD for Mac (Apple macOS / Mac OS X)
TurboCAD for Mac (Apple macOS / Mac OS X)
Software capable of saving step files:
AutoCAD (Microsoft Windows)
ZEMAX (Microsoft Windows)
TurboCAD (Microsoft Windows)
CATIA (Microsoft Windows)
TopSolid (Microsoft Windows)
Creo Parametric (Microsoft Windows)
AutoCAD for Mac (Apple macOS / Mac OS X)
TurboCAD for Mac (Apple macOS / Mac OS X)
Programs for viewing step files:
Myriad CAD Viewer (Microsoft Windows)
VariCAD Viewer (Microsoft Windows)
3D-Tool (Microsoft Windows)
Afanche 3D Viewer for Mac (Apple macOS / Mac OS X)
VariCAD Viewer for Linux (Linux/Unix)
Software apps that create step files:
AutoCAD (Microsoft Windows)
ZEMAX (Microsoft Windows)
TurboCAD (Microsoft Windows)
CATIA (Microsoft Windows)
Creo Parametric (Microsoft Windows)
AutoCAD for Mac (Apple macOS / Mac OS X)
TurboCAD for Mac (Apple macOS / Mac OS X)
Software apps that convert step files:
AutoCAD (Microsoft Windows)
ZEMAX (Microsoft Windows)
AnyCAD Exchange3D (Microsoft Windows)
Autoconverter (Microsoft Windows)
Creo Parametric (Microsoft Windows)
AutoCAD for Mac (Apple macOS / Mac OS X)
TurboCAD for Mac (Apple macOS / Mac OS X)
Software apps that import step files:
3D Object Converter (Microsoft Windows)
SolidWorks (Microsoft Windows)
INOVATE (Microsoft Windows)
SpinFire (Microsoft Windows)
NX (Microsoft Windows)
Cimatron (Microsoft Windows)
Keyshot (Microsoft Windows)
PolyTrans|CAD+DCC (Microsoft Windows)
Alibre Design Professional (Microsoft Windows)
Surfcam (Microsoft Windows)
ViaCAD 2D/3D (Microsoft Windows)
KeyCreator (Microsoft Windows)
Open CASCADE Technology (Microsoft Windows)
MicroStation (Microsoft Windows)
CINEMA 4D (Microsoft Windows)
Solid Edge (Microsoft Windows)
3ds Max (3D Studio Max) (Microsoft Windows)
Autodesk Inventor (Microsoft Windows)
Cadwork 3D (Microsoft Windows)
ViaCAD Pro (Microsoft Windows)
EnSuite (Microsoft Windows)
BobCAD-CAM Mill (Microsoft Windows)
3D-Tool (Microsoft Windows)
Anark Core (Microsoft Windows)
CAD Exchanger (Microsoft Windows)
Shapr3D (Multiplatform)
Online CAD Viewer (Multiplatform)
Online CAD converter (On-line services)
3D Transform (On-line services)
Software apps that export step files:
PolyTrans-for-CINEMA-4D (Microsoft Windows)
CrossManager (Microsoft Windows)
3D Object Converter (Microsoft Windows)
SolidWorks (Microsoft Windows)
IronCAD (Microsoft Windows)
CATIA (Microsoft Windows)
ArtiosCAD (Microsoft Windows)
TransMagic (Microsoft Windows)
DipTrace (Microsoft Windows)
VariCAD (Microsoft Windows)
Alibre Design Professional (Microsoft Windows)
MicroStation (Microsoft Windows)
Parasolid (Microsoft Windows)
Solid Edge (Microsoft Windows)
3ds Max (3D Studio Max) (Microsoft Windows)
Autodesk Inventor (Microsoft Windows)
ViaCAD Pro (Microsoft Windows)
EnSuite (Microsoft Windows)
3D-Tool (Microsoft Windows)
CAD Exchanger (Microsoft Windows)
Xenon (Multiplatform)
Autodesk Fusion 360 (Multiplatform)
Autodesk Maya (Multiplatform)
Software apps that print step files:
AutoCAD (Microsoft Windows)
ZEMAX (Microsoft Windows)
VariCAD Viewer (Microsoft Windows)
TurboCAD (Microsoft Windows)
CATIA (Microsoft Windows)
Creo Parametric (Microsoft Windows)
Afanche 3D Viewer for Mac (Apple macOS / Mac OS X)
AutoCAD for Mac (Apple macOS / Mac OS X)
TurboCAD for Mac (Apple macOS / Mac OS X)
VariCAD Viewer for Linux (Linux/Unix)