Having problems opening a STEP file?

We have programs that can open or convert your STEP files.

Opening STEP files

Did your computer fail to open a STEP file? We explain what STEP files are and recommend software that we know can open or convert your STEP files.

What is a STEP file?

Files with the .step extension are usually 3D model files created in the STEP file format. STEP stands for Standard for the Exchange of Product Data. This ISO standard exchange format is used to distribute 3D data files (such as CAD files) in a format that can be viewed by a variety of software applications. The .step file extension is interchangeable with the .stp file extension.

The .step file extension is also used for PyDDR files.

Try a universal file viewer

Try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and most likely yours too. Download Free File Viewer here.

About File Extension STEP

File.org aims to be the go-to resource for file type- and related software information. We spend countless hours researching various file formats and software that can open, convert, create or otherwise work with those files.

If you have additional information about the STEP file format or software that uses files with the STEP suffix, please do get in touch - we would love hearing from you.