A20 File Extension

What is A20 file?

A20 is a file extension commonly associated with Split Multi-volume ARJ Compressed Format Archive (part 22) files. ARJ Software, Inc. defined the Split Multi-volume ARJ Compressed Format Archive (part 22) format standard. A20 file format is compatible with software that can be installed on Windows system platform. Files with A20 extension are categorized as Archive Files files. The Archive Files subset comprises 619 various file formats. The most popular program for handling A20 files is ARJ32, but users can choose among 5 different programs that support this file format. ARJ32 software was developed by ARJ Software, Inc., and on its official website you may find more information about A20 files or the ARJ32 software program.

Programs which support A20 file extension

Below is a table that list programs that support A20 files. Files with A20 extension, just like any other file formats, can be found on any operating system. The files in question may be transferred to other devices, be it mobile or stationary, yet not all systems may be capable of properly handling such files.

How to open file with A20 extension?

There can be multiple causes why you have problems with opening A20 files on given system. On the bright side, the most encountered issues pertaining to Split Multi-volume ARJ Compressed Format Archive (part 22) files aren’t complex. In most cases they can be addressed swiftly and effectively without assistance from a specialist. The following is a list of guidelines that will help you identify and solve file-related problems.

Step 1. Install ARJ32 software

The main and most frequent cause precluding users form opening A20 files is that no program that can handle A20 files is installed on user’s system. This issue can be addressed by downloading and installing ARJ32 or different compatible program, such as WinZip, 7-Zip, WinRAR. On the top of the page a list that contains all programs grouped based on operating systems supported can be found. One of the most risk-free method of downloading software is using links provided by official distributors. Visit ARJ32 website and download the installer.

Step 2. Verify the you have the latest version of ARJ32

If you already have ARJ32 installed on your systems and A20 files are still not opened properly, check if you have the latest version of the software. Software developers may implement support for more modern file formats in updated versions of their products. The reason that ARJ32 cannot handle files with A20 may be that the software is outdated. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using ARJ32.

Step 3. Set the default application to open A20 files to ARJ32

If you have the latest version of ARJ32 installed and the problem persists, select it as the default program to be used to manage A20 on your device. The method is quite simple and varies little across operating systems.

Selecting the first-choice application in Windows

• Right-click the A20 file and choose Open with option
• Next, select the Choose another app option and then using More apps open the list of available applications
• The last step is to select Look for another app on this PC option supply the directory path to the folder where ARJ32 is installed. Now all that is left is to confirm your choice by selecting Always use this app to open A20 files and clicking OK.

Selecting the first-choice application in Mac OS

• Right-click the A20 file and select Information
• Proceed to the Open with section. If its closed, click the title to access available options
• Select ARJ32 and click Change for all...
• A message window should appear informing that This change will be applied to all files with A20 extension. By clicking Continue you confirm your selection.

Step 4. Verify that the A20 is not faulty

Should the problem still occur after following steps 1-3, check if the A20 file is valid. Being unable to access the file can be related to various issues.

1. The A20 may be infected with malware – make sure to scan it with an antivirus tool.

Should it happed that the A20 is infected with a virus, this may be that cause that prevents you from accessing it. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. If the scanner detected that the A20 file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.

2. Check whether the file is corrupted or damaged

If you obtained the problematic A20 file from a third party, ask them to supply you with another copy. The file might have been copied erroneously and the data lost integrity, which precludes from accessing the file. It could happen the the download process of file with A20 extension was interrupted and the file data is defective. Download the file again from the same source.

3. Ensure that you have appropriate access rights

Sometimes in order to access files user need to have administrative privileges. Log out of your current account and log in to an account with sufficient access privileges. Then open the Split Multi-volume ARJ Compressed Format Archive (part 22) file.

4. Make sure that the system has sufficient resources to run ARJ32

If the systems has insufficient resources to open A20 files, try closing all currently running applications and try again.

5. Ensure that you have the latest drivers and system updates and patches installed

Latest versions of programs and drivers may help you solve problems with Split Multi-volume ARJ Compressed Format Archive (part 22) files and ensure security of your device and operating system. It may be the case that the A20 files work properly with updated software that addresses some system bugs.

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