A18 File Extension

What is A18 file?

Full format name of files that use A18 extension is Split Multi-volume ARJ Compressed Format Archive (part 20). ARJ Software, Inc. defined the Split Multi-volume ARJ Compressed Format Archive (part 20) format standard. A18 files are supported by software applications available for devices running Windows. Files with A18 extension are categorized as Archive Files files. The Archive Files subset comprises 619 various file formats. ARJ32 supports A18 files and is the most frequently used program to handle such files, yet 5 other tools may also be used. ARJ32 software was developed by ARJ Software, Inc., and on its official website you may find more information about A18 files or the ARJ32 software program.

Programs which support A18 file extension

Below is a table that list programs that support A18 files. A18 files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

How to open file with A18 extension?

Problems with accessing A18 may be due to various reasons. On the bright side, the most encountered issues pertaining to Split Multi-volume ARJ Compressed Format Archive (part 20) files aren’t complex. In most cases they can be addressed swiftly and effectively without assistance from a specialist. The list below will guide you through the process of addressing the encountered problem.

Step 1. Download and install ARJ32

The main and most frequent cause precluding users form opening A18 files is that no program that can handle A18 files is installed on user’s system. The most obvious solution is to download and install ARJ32 or one to the listed programs: WinZip, 7-Zip, WinRAR. The full list of programs grouped by operating systems can be found above. The safest method of downloading ARJ32 installed is by going to developer’s website (ARJ Software, Inc.) and downloading the software using provided links.

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

You still cannot access A18 files although ARJ32 is installed on your system? Make sure that the software is up to date. Software developers may implement support for more modern file formats in updated versions of their products. If you have an older version of ARJ32 installed, it may not support A18 format. 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. Associate Split Multi-volume ARJ Compressed Format Archive (part 20) files with ARJ32

After installing ARJ32 (the most recent version) make sure that it is set as the default application to open A18 files. The method is quite simple and varies little across operating systems.

Selecting the first-choice application in Windows

• Right-click the A18 file and choose Open with option
• Next, select the Choose another app option and then using More apps open the list of available applications
• To finalize the process, select Look for another app on this PC entry and using the file explorer select the ARJ32 installation folder. Confirm by checking Always use this app to open A18 files box and clicking OK button.

Selecting the first-choice application in Mac OS

• Right-click the A18 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...
• If you followed the previous steps a message should appear: This change will be applied to all files with A18 extension. Next, click the Continue button to finalize the process.

Step 4. Verify that the A18 is not faulty

You closely followed the steps listed in points 1-3, but the problem is still present? You should check whether the file is a proper A18 file. Being unable to access the file can be related to various issues.

1. The A18 may be infected with malware – make sure to scan it with an antivirus tool.

If the file is infected, the malware that resides in the A18 file hinders attempts to open it. Scan the A18 file as well as your computer for malware or viruses. If the A18 file is indeed infected follow the instructions below.

2. Check whether the file is corrupted or damaged

Did you receive the A18 file in question from a different person? Ask him/her to send it one more time. During the copy process of the file errors may occurred rendering the file incomplete or corrupted. This could be the source of encountered problems with the file. If the A18 file has been downloaded from the internet only partially, try to redownload it.

3. Verify whether your account has administrative rights

Some files require elevated access rights to open them. 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 20) file.

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

If the system is under havy load, it may not be able to handle the program that you use to open files with A18 extension. In this case close the other applications.

5. Verify that your operating system and drivers are up to date

Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with Split Multi-volume ARJ Compressed Format Archive (part 20) files. Outdated drivers or software may have caused the inability to use a peripheral device needed to handle A18 files.

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