.ARX File

.arx is AutoCAD Runtime Extension File

Key Features: .ARX File Extension

Features Description
File Extension .arx
Format Binary
Created by Autodesk
Category Plugin

What's on this Page

  1. How to open:
  2. How to convert:

What is an .ARX file?

The arx file extension is related to AutoCAD, one of the leading 2D and 3D CAD programs, developed and marketed by Autodesk.

The arx file contains runtime extension, a form of the C++ programming language. 

These arx files are basically programs that add functions to AutoCAD.

They often contain the code for specific commands or groups of commands and are considered more sophisticated than ADS.

Files with arx file extension can be mainly found as runtime extensions for Autodesk AutoCAD, a CAD and CAM software for Windows and Mac.

How to open:

These files can be most likely imported to AutoCAD.

How to convert:

There is no way how to convert *.arx files to other formats.
AutoCAD Runtime Extension File - File openers


  1. Autodesk AutoCAD 2018
  2. Autodesk ObjectARX SDK




How to solve problems with ARX files