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.STEP File Extension

File TypeSTEP 3D Model

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Category3D Image Files
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What is an STEP file?

A STEP file is a 3D model file formatted in STEP (Standard for the Exchange of Product Data), an ISO standard exchange format. It contains three-dimensional data in a format that can be recognized by multiple programs, such as Dassault Systemes SolidWorks, IMSI TurboCAD, and Autodesk Fusion 360.

More Information

In the CAD industry, it can be difficult to share models between users with different CAD systems. The STEP format was developed as a solution to this problem. It is designed to be used similarly to how the .PDF format is used for saving documents in a widely supported format. Because of the interoperability of the format, STEP files are often shared between CAD users that use different programs to open the 3D models.

NOTE: The STEP format is STEP model files often use the .STP file extension.

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Programs that open STEP files
Updated 5/16/2019

About STEP Files

Our goal is to help you understand what a file with a *.step suffix is and how to open it.

The STEP 3D Model file type, file format description, and Mac, Windows, Linux, Android, and iOS programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

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