File Extension Database

Open ARJ File

ARJ file extension is associated with a compressed file format known as Archived by Robert Jung (ARJ). This file format was popular in the 1990s and early 2000s but has since been surpassed by more modern and efficient compression methods, such as ZIP and RAR. ARJ files can still be encountered today, and this article will outline the possible formats and ways to open and use ARJ files.

Opening and Extracting ARJ Files

Although ARJ files are no longer in widespread use, there are still multiple methods and tools available to open and extract the contents of an ARJ file. Some commonly used software include:

7-Zip: A free and open-source file archiver with a high compression ratio. It supports a variety of formats, including ARJ.
WinRAR: Another popular file archiver that can open and extract ARJ files. WinRAR offers a free trial period, after which a license must be purchased.
ARJ Software: The official website of the ARJ Software that offers a range of tools, including the ARJ32 command line utility, which can open and extract ARJ files.

To open and extract an ARJ file using any of these tools, simply follow the instructions provided by the software. In most cases, right-clicking on the ARJ file and selecting the appropriate option from the context menu will begin the extraction process.

Creating ARJ Files

If you need to create an ARJ file for any reason, you can use the original ARJ software available on the ARJ Software website. The ARJ32 utility provides command line options to create, update, or modify ARJ files. Examples of usage can be found in the software's documentation.

However, it is worth noting that more modern compression formats, such as ZIP or RAR, offer better compression ratios and are more widely supported. As a result, it is advisable to use these newer formats if possible.

Using ARJ Files in Programming and Development

In addition to the tools mentioned above, developers may need to work with ARJ files programmatically. Several libraries are available for different programming languages that can read, extract, or create ARJ files, including:

libarj: A C library for reading and creating ARJ archives, available as open-source

Developers can incorporate these libraries into their software projects to manipulate ARJ files as needed.

ARJ File Important Information

In summary, ARJ files are an older compressed file format that has been largely superseded by more modern and efficient file formats. Although they are less common today, several tools and libraries are available for opening, extracting, and working with ARJ files. It is important to remember that newer compression formats are generally more advisable to use due to their improved efficiency and widespread compatibility.

Typical ARJ application file locations:

C:\Program Files (x86)\WinRAR\WinRAR.exe "%1"
"C:\Program Files\WinRAR\WinRAR.exe" "%1"

Frequently used application names to open ARJ files:

WinRAR

Frequently associated Windows objects:

WinRAR

How Can I Open ARJ File on Windows

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

How Can I Open ARJ File on Mac OS

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

How Can I Open ARJ File on Android

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

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

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