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Basic information about ARX file

When there is a problem with opening files with the file extension ARX（*.ARX or *.arx）, you do not need a computer expert. In most cases, using the helpful suggestions of experts contained in our website as well as appropriate programs, you can solve the problem with the ARX file yourself.

There are 1 file types using the ARX file extension in our database. In the further part of this page, you will find detail information about all the ARX file with their brief description and a list of programs that support ARX file sorted by operating systems. The table below provides useful information about the ARX file extension. It answers questions such as:
  • What is the ARX file?
  • How to open a ARX file?
  • What programs do I need to open a ARX file?
  • What programs help to create and edit a ARX file?
  • How to convert ARX files to another file format?
  • How to convert another files to ARX file format?


1.Detail information about ARX file extension: AutoCAD Runtime Extension File

File type AutoCAD Runtime Extension File Category Plugin Files
Developer Autodesk File format Binary
Description ARX file is a AutoCAD Runtime Extension File developed by Autodesk. Extension file created for AutoCAD, a design and engineering application for 2D and 3D products; contains an application component written using Autodesk's ObjectARX, an object-oriented API that allows developers to customize and extend AutoCAD using C++, C#, and VB.NET program code.
Software programs that will open, edit or convert ARX files

Windows		 Autodesk AutoCAD 2018
Autodesk ObjectARX SDK



How to convert another files to ARX file format?

There are 1 records in our database eligible for another files to ARX file format conversion. If you want to achieve another files to ARX conversion, you may use the option.

BAK to ARX


Can't open a ARX file?

When you click a file to open it, operating system examines the filename extension. If operating system recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When operating system does not recognize a filename extension, you receive the following message:

”Can't open this file: example.ARX”。

To open this file, you install one of the applications from the list of software programs that you found here, you should be able to open, edit or convert the file with the ARX extension without any issue.


Where I can download the application that support ARX file?

If you do not know where you can download the application from our list, click on the link (which is the name of the program), you will find more information there on the location where to download the required application. Most often they are the websites of software manufacturers.


How to change file associations?

  • Right-click a file with the extension whose association you want to change, and then click "Open With".
  • In the "Open With" dialog box, click the program whith which you want the file to open, or click "Browse" to locate the program that you want.
  • Select the ”Always use the selected program to open this kind of file” check box.


Can I change the extension of ARX files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read/open the file. The problem is, changing the file extension does not change the file format. Select a software program from our list and install it on your computer. If the file has not opened correctly, you have to look for a different software program from our list. Sometimes you have to repeat the operation several times.


What else may cause problems width open a ARX file?

The reasons for the lack of the ability to open a ARX file on your computer may be at least several. The easiest thing is to find a suitable application installed on your computer, which will open a ARX file. If there is still something wrong, you might want to check:

  • Whether the ARX file is damaged.
  • Whether the ARX file is incorrectly linked in the registry entries.
  • Whether the ARX file extension has been accidentally removed from the Windows registry.
  • Whether the installation of an application that supports the ARX file format is incompletely.
  • Whether the ARX file is infected.
  • Whether the drivers of the equipment used for opening a ARX file are up to date.
  • Whether your computer has enough hardware resources to open a ARX file.

If the ARX file still not working with your software after eliminating the above shortcomings? That means that the problem is more complex and requires the help of a specialist.