.123DX File Extension

File Type:
123D Design Model File

Having trouble opening .123dx extension? Don't panic! This page explains what 123dx files are as well as suggests programs you may use to open 123dx files. You can download these programs through this page.

What is a 123DX file?

123dx file extension has 123D Design Model file type, developed by Autodesk, which is associated with the "cad files" category.

Created by 123D Design, an application used to design models for print or fabrication, a 123DX file contains 3D geometry of the model. Additionally, the file stores various materials defining the appearance of the surface of the model.

To learn how you can open the given file, read the information below.

123dx file icon
File Type:
123D Design Model File
CAD Files

How to open 123DX file?

Double click the 123dx file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .123dx extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the 123dx extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the 123dx file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open 123DX files

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the 123dx file as well. Download Universal File Viewer for your OS.

Download for Win
Secure download
Download for Mac
Secure download