File Extension Database

Open 123DX File

The 123DX extension is a 3D model created by 123D Design, a program used to design models for printing or manufacturing.

About 123D Design

It was a hobbyist CAD and 3D modeling toolset created by Autodesk.

It is functionally similar to Trimble SketchUp and is based on Autodesk Inventor.

In addition to the most basic drawing and modeling capabilities, it also has assembly and constraint support and STL export.

The 123D Design software is no longer available for download as the developer stopped its support. Instead, there are a number of utilities and applications developed by AutoDesk, which replace all the functions of 123D Design.

Function of the 123DX file

The 123DX file stores the 3D geometry of the model, as well as the materials that define the appearance of the model's surface.

123D Design models, saved to a 123DX file, automatically assign connections between parts that give the model natural movements when moved.

Software to open and work with a 123DX file

How Can I Open 123DX File on Windows

We researched and learned that the best way to open 123DX file is to find a 123DX file in question in Windows OS File Explorer and double click on it to launch the corresponding application.
If a 123DX 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 123DX 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 123DX file opener then try to search online for "123DX viewer", "application to open 123DX file" or "open 123DX file" queries in the search engine you like.
Install the application you found and check if it can open 123DX file

How Can I Open 123DX File on Mac OS

We recommend to find a 123DX file in question in Mac OS Finder and double click on it to launch the corresponding application.
If a 123DX 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 123DX file.
If you know the Mac OS application which can work as 123DX file opener you can choose the "Choose Application..." option in the error box to associate the file extension and open 123DX file in it.
If you don't know the application which can open 123DX file then try to search for "123DX viewer", "application to open 123DX file" or "read 123DX file" queries in the online search engine you like.
Install the application you found and check if it can read 123DX file

How Can I Open 123DX File on Android

If you downloaded a 123DX 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 123DX 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 "123DX".
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 "123DX viewer", "123DX 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 123DX File on iPhone or iPad

To open 123DX 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 123DX 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 "123DX". This way you can find apps which can open 123DX 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 "123DX viewer" or "123DX file" online in your favorite search engine.

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