A09 File Extension

What is A09 file?

A09 is a file extension commonly associated with Split Multi-volume ARJ Compressed Format Archive (part 11) files. Split Multi-volume ARJ Compressed Format Archive (part 11) format was developed by ARJ Software, Inc.. A09 files are supported by software applications available for devices running Windows. Files with A09 extension are categorized as Archive Files files. The Archive Files subset comprises 619 various file formats. Users are advised to use ARJ32 software for managing A09 files, although 5 other programs can also handle this type of file. On the official website of ARJ Software, Inc. developer not only will you find detailed information about theARJ32 software, but also about A09 and other supported file formats.

Programs which support A09 file extension

Programs that can handle A09 files are as follows. Files with A09 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 A09 extension?

There can be multiple causes why you have problems with opening A09 files on given system. On the bright side, the most encountered issues pertaining to Split Multi-volume ARJ Compressed Format Archive (part 11) 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. Install ARJ32 software

Problems with opening and working with A09 files are most probably having to do with no proper software compatible with A09 files being present on your machine. The most obvious solution is to download and install ARJ32 or one to the listed programs: 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. If you want to download ARJ32 installer in the most secured manner, we suggest you visit ARJ Software, Inc. website and download from their official repositories.

Step 2. Check the version of ARJ32 and update if needed

If you already have ARJ32 installed on your systems and A09 files are still not opened properly, check if you have the latest version of the software. Sometimes software developers introduce new formats in place of that already supports along with newer versions of their applications. If you have an older version of ARJ32 installed, it may not support A09 format. The most recent version of ARJ32 is backward compatible and can handle file formats supported by older versions of the software.

Step 3. Set the default application to open A09 files to ARJ32

If the issue has not been solved in the previous step, you should associate A09 files with latest version of ARJ32 you have installed on your device. The next step should pose no problems. The procedure is straightforward and largely system-independent

The procedure to change the default program in Windows

• Right-click the A09 file and choose Open with option
• Select Choose another app → More apps
• 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 A09 files box and clicking OK button.

The procedure to change the default program in Mac OS

• Right-click the A09 file and select Information
• Open the Open with section by clicking its name
• Select the appropriate software and save your settings by clicking Change all
• Finally, a This change will be applied to all files with A09 extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Ensure that the A09 file is complete and free of errors

If you followed the instructions form the previous steps yet the issue is still not solved, you should verify the A09 file in question. It is probable that the file is corrupted and thus cannot be accessed.

1. Verify that the A09 in question is not infected with a computer virus

If the A09 is indeed infected, it is possible that the malware is blocking it from opening. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. A09 file is infected with malware? Follow the steps suggested by your antivirus software.

2. Verify that the A09 file’s structure is intact

If you obtained the problematic A09 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. If the A09 file has been downloaded from the internet only partially, try to redownload it.

3. Verify whether your account has administrative rights

Sometimes in order to access files user need to have administrative privileges. Switch to an account that has required privileges and try opening the Split Multi-volume ARJ Compressed Format Archive (part 11) file again.

4. Verify that your device fulfills the requirements to be able to open ARJ32

If the systems has insufficient resources to open A09 files, try closing all currently running applications and try again.

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

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with Split Multi-volume ARJ Compressed Format Archive (part 11) file. It is possible that one of the available system or driver updates may solve the problems with A09 files affecting older versions of given software.

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