ARJ File Extension

ARJ Compressed Format Archive

File Type arj
Developer ARJ Software
Popularity
4.2 (38 votes)
Application ARJ32
Category Compressed Files

What is a ARJ file?

Files with the ARJ extension are specifically tied to ARJ Compressed Format Archive, a Compressed Files type, and there are 820 files in this category.

The ARJ Compressed Format Archive (ARJ), created by ARJ Software, is one of file format they developed, and they also built 2 programs to support them.

ARJ file support extends to various operating systems, including Windows, Mac OS and Linux. When working with ARJ files, you can rely on 15 programs, including WinArchiver, ZIPGenius and 7-zip.

MIME types

application/x-stuffit, zz-application
application/x-tar
application/x-gzip
application/x-compress
application/zip
application/x-compressed
application/x-winzip
application/arj

File Signature

HEX code: 60 EA. ASCII code: `.

Windows

Mac OS

Linux

Xarchiver

How to open a ARJ file?

If you can’t open a ARJ file, it is usually because the necessary software is missing. To resolve the issue, select the right program from the list for your operating system. Then go to the official website of the developer, download the software, and install it.

Thanks to their popularity, WinArchiver, ZIPGenius and 7-zip are often the go-to programs for managing ARJ files. To install the updated version of ARJ32, simply go to the ARJ Software site and download the installer compatible with all major platforms.

After installation, your operating system should automatically open ARJ files with ARJ32.

Set ARJ32 as your default ARJ viewer

Set default app to open files on Mac

Right-click or Control + left-click on the desired ARJ file to open a menu of available actions;
Choose "Open in Application" and click "Other";
Next, at the bottom of the window, you will see the "Enable" menu, in which "Recommended Programs" is selected by default;
In this menu, select "All Programs", then find ARJ32 and check the box next to "Always open in the application."

Change a default app in Windows

Take the first step by right-clicking on your ARJ file. Next, select "Open With" and then choose "Choose another app" from the available options;
From the list of applications in the pop-up window, find and select ARJ32 as your desired application;
Check the "Always use this app" checkbox, and then click "OK" to set your chosen app as the default for opening ARJ files.

Solving Common ARJ File Challenges

There are some common issues with ARJ files that can be resolved easily by making minor adjustments to your software. Below, you’ll find these issues along with practical troubleshooting tips.

Why does ARJ32 stop responding or crash intermittently?

Lack of software updates is a possible reason behind ARJ32 crash. Keep your ARJ Software products up to date by installing the latest updates.

A simple restart of your computer can often fix many common problems, which is why it is the recommended first step before making any adjustments to your software settings.

What are the best practices for repairing a ARJ file that has gone bad?

In a data recovery program, open the damaged ARJ file and select the "Repair" menu option. Wait for the recovery process to finish as it will automatically restore the damaged compressed files.

How do I know if my ARJ file has been damaged?

Characteristics of corrupted ARJ compressed files can include:

Error alerts occur when actions are performed on the file;
Editing the archive in ARJ32 is hampered by poor overall performance;
The file encounters problems during the opening process or shows error indications;
An unexplained increase in the size of the ARJ file;
The file causes ARJ32 or other software to hang or crash during various operations;

How to edit a ARJ file?

To modify ARJ files, you need to install special software that makes it possible to open and edit compressed files. Online ARJ editors are more restricted compared to software designed for ARJ Compressed Format Archive.

Best ARJ editors 2026

Based on these criteria, we have prepared a list of available ARJ editors.

ARJ Editor Software	Developer	Platforms	Overall Rating
ARJ32	ARJ Software	Windows	4.2 out of 5 (39 reviews)

Convert files to and from ARJ

If obstacles arise while working with a ARJ file, you may convert it to formats like ZIP, RAR, E01 or other similar types for smoother handling.

After converting a ARJ file, some capabilities may be limited, but you can often convert it back to the original format.

Several applications, including ALZip, can convert ARJ files offline without quality loss.