Open STEP file

STEP files: what are they and how do I open them?

step file icon Are you facing difficulties opening unknown files on your computer, or wondering exactly what this file is?
We've got the information and best software solutions for opening these files effortlessly.

Product data file in ISO-10303 STEP format

STEP file extension is best known for its use for the default 3D model/part files that are saved in the STEP (Standard for the Exchange of Product Data).

Further details:

ISO-10303 STEP (Standard for the Exchange of Product Data) is a standard file format used to exchange and share data among different Computer-Aided Design (CAD) software.

It is used to represent 3D models and related information such as materials, colors, and textures. The STEP file format is developed and maintained by the International Organization for Standardization (ISO). It is widely used in industries such as automotive, aerospace, building and construction, electronics, and others for sharing 3D product designs and related information.

Open file with:

SolidWorks icon


A 2D and 3D CAD construction software

CATIA icon


A PLM/CAD/CAM/CAE software suite

Autodesk Inventor icon

Autodesk Inventor

Autodesk Inventor is modeling application used to create 3D digital prototypes


A CINEMA-4D converter


A 3D modelling program


A product data visualisation software

Afanche 3D Viewer for Mac

A Mac version of the popular 3D visualisation software

Autodesk Fusion 360

3D CAD/CAM tool for product development

IronCAD icon


A 3D modelling application


A 3D desktop CAD software

What is the meaning of a file extension?

File extensions are characters that appear after the dot in a computer file's name. For example, the file "unknown-file.step" has the file extension "step". This is used to identify which program should open the file or what file type it is.
File extensions help you organize and manage files. They provide a quick and easy way to identify and associate the file type with the appropriate software.

We can help you open your file

In our database, we have collected a huge number of different file extensions, detailed descriptions, and programs that can be used to open or otherwise work with the file extensions listed in our database.
This database is an invaluable resource for users who want to understand better file extensions and what they can do with them. It also allows users to know different file types with the same purpose.

Only verified software links are provided

We have verified every software listed in our database. The software listed in our database includes links to the developer's or software's website. These links should allow you to download the right program for each file type. Using verified software from reputable sources helps minimize the risk of malware and viruses infecting your computer.