File Extension Database

Open STEP File

STEP extension file is a 3D assembly file that is used for compatibility with some mechanical design programs, such as TurboCAD and Fusion 360.

STEP file contains three-dimensional object data saved in the Standard for the Exchange of Product Data STEP) format.

STEP files are ASCII text-based format conforming to the STEP ISO application protocols.

STEP files are mainly used to transfer and make 3D graphics compatible between different CAD and CAM systems.

Many manufacturers use the STEP file for the design and subsequent monetization of molds or parts to be manufactured.

STP files are also related to the more common STP extension.

Software to open STEP files

To open files with the STEP extension, you need the following software packages:

How Can I Open STEP File on Windows

We researched and learned that the best way to open STEP file is to find a STEP file in question in Windows OS File Explorer and double click on it to launch the corresponding application.
If a STEP file is not opened in an application and you instead get a "Windows can't open a file" error message you should try looking for an application which can open the file in question.
If you know the application which can open STEP file then run it and see if there is a File->Open main menu option in the application.
If you don't know the application which function as STEP file opener then try to search online for "STEP viewer", "application to open STEP file" or "open STEP file" queries in the search engine you like.
Install the application you found and check if it can open STEP file

How Can I Open STEP File on Mac OS

We recommend to find a STEP file in question in Mac OS Finder and double click on it to launch the corresponding application.
If a STEP file is not opened in a Mac OS application and you instead get a "There is no application set to open the file" error message you can click on "Search App Store" in the error dialog and Mac OS will show you applications compatible with STEP file.
If you know the Mac OS application which can work as STEP file opener you can choose the "Choose Application..." option in the error box to associate the file extension and open STEP file in it.
If you don't know the application which can open STEP file then try to search for "STEP viewer", "application to open STEP file" or "read STEP file" queries in the online search engine you like.
Install the application you found and check if it can read STEP file

How Can I Open STEP File on Android

If you downloaded a STEP file on Android device you can open it by following steps below:

In the Android apps list on your Android device find "My Files" or "File manager" app and tap to start it.
Tap on "Downloads" folder inside the app.
You should see your downloaded STEP file in that folder.
Tap on the file. If Android device supports opening the file you downloaded it will open in the corresponding app.
If file does not open you can look for the corresponding app that can open the file by searching Android App Store for the "STEP".
If you cannot open the file with the apps from Android App Store it is possible that the file could only be opened on desktop platforms such as Windows or Mac OS. Try searching for "STEP viewer", "STEP file reader" online and see if any desktop applications can open it.
It is also possible that the file you downloaded is outdated and is no longer supported.

How to Open STEP File on iPhone or iPad

To open STEP File on iOS device follow steps below:

We advies to open Files app on your iPhone or iPad device. You can find it by swiping down on the home screen and typing "Files" in the search bar.
Tap on the Downloads folder on the Files app home screen.
You will see all files that you recently downloaded. Tap on the STEP file to view it.
If you have the right app that can open it it will automatically launch and open your file.
If you don't have the app which can open it you need to serch Apple app store for "STEP". This way you can find apps which can open STEP files.
If this doesn't help it is possible that your file could be opened only by the desktop application. To find an app which can open it on desktop look for "STEP viewer" or "STEP file" online in your favorite search engine.

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