ABBU File Extension

What is ABBU file?

ABBU is a file extension commonly associated with Address Book Backup files. ABBU file format is compatible with software that can be installed on Mac OS system platform. ABBU file format, along with 243 other file formats, belongs to the Backup Files category. Users are advised to use Mac OS X Address Book (Contacts) software for managing ABBU files, although 1 other programs can also handle this type of file.

Programs which support ABBU file extension

The following listing features ABBU-compatible programs. ABBU 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 ABBU extension?

Problems with accessing ABBU may be due to various reasons. Fortunately, most common problems with ABBU files can be solved without in-depth IT knowledge, and most importantly, in a matter of minutes. The list below will guide you through the process of addressing the encountered problem.

Step 1. Download and install Mac OS X Address Book (Contacts)

Problems with opening and working with ABBU files are most probably having to do with no proper software compatible with ABBU files being present on your machine. This one is an easy one. Select Mac OS X Address Book (Contacts) or one of the recommended programs (for example, Mac OS X) and download it from appropriate source and install on your system. 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 Mac OS X Address Book (Contacts) installer in the most secured manner, we suggest you visit website and download from their official repositories.

Step 2. Check the version of Mac OS X Address Book (Contacts) and update if needed

If you already have Mac OS X Address Book (Contacts) installed on your systems and ABBU files are still not opened properly, check if you have the latest version of the software. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. This can be one of the causes why ABBU files are not compatible with Mac OS X Address Book (Contacts). The latest version of Mac OS X Address Book (Contacts) should support all file formats that where compatible with older versions of the software.

Step 3. Set the default application to open ABBU files to Mac OS X Address Book (Contacts)

If you have the latest version of Mac OS X Address Book (Contacts) installed and the problem persists, select it as the default program to be used to manage ABBU on your device. The next step should pose no problems. The procedure is straightforward and largely system-independent

Change the default application in Windows

• Right-click the ABBU 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 Mac OS X Address Book (Contacts) installation folder. Confirm by checking Always use this app to open ABBU files box and clicking OK button.

Change the default application in Mac OS

• By clicking right mouse button on the selected ABBU file open the file menu and choose Information
• Open the Open with section by clicking its name
• Select Mac OS X Address Book (Contacts) and click Change for all...
• If you followed the previous steps a message should appear: This change will be applied to all files with ABBU extension. Next, click the Continue button to finalize the process.

Step 4. Ensure that the ABBU 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 ABBU file in question. It is probable that the file is corrupted and thus cannot be accessed.

1. The ABBU 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 ABBU file hinders attempts to open it. It is advised to scan the system for viruses and malware as soon as possible or use an online antivirus scanner. ABBU file is infected with malware? Follow the steps suggested by your antivirus software.

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

If you obtained the problematic ABBU 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. When downloading the file with ABBU extension from the internet an error may occurred resulting in incomplete file. Try downloading the file again.

3. Ensure that you have appropriate access rights

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Switch to an account that has required privileges and try opening the Address Book Backup file again.

4. Check whether your system can handle Mac OS X Address Book (Contacts)

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

5. Check if you have the latest updates to the operating system and drivers

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with Address Book Backup file. Outdated drivers or software may have caused the inability to use a peripheral device needed to handle ABBU files.

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