File extension ABBU
| File type | Apple Address Book Archive Format |
| Developer | N/A |
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What is a ABBU file?
ABBU is a database file copy that contains addresses used by Contacts app available for Mac OS X and macOS. ABBU file stores all Apple address book information.
iCloud automatic data synchronization feature ultimately deemed manual creation backup copies obsolete. ABBU file can be created using Contacts ‘Contacts Archive’ option selected from ‘Export’ submenu of ‘File’ menu. Size of created archive depends on whether contact data also provides photos or not.
Program(s) that can open the .ABBU file
How to open ABBU files
If you cannot open the ABBU file on your computer - there may be several reasons. The first and most important reason (the most common) is the lack of a suitable software that supports ABBU among those that are installed on your device.
A very simple way to solve this problem is to find and download the appropriate application. The first part of the task has already been done – the software supporting the ABBU file can be found in the table. Now just download and install the appropriate application.
Possible problems with the ABBU format files
The inability to open and operate the ABBU file does not necessarily mean that you do not have an appropriate software installed on your computer. There may be other problems that also block our ability to operate the Apple Address Book Archive Format file. Below is a list of possible problems.
- Corruption of a ABBU file which is being opened
- Incorrect links to the ABBU file in registry entries.
- Accidental deletion of the description of the ABBU from the Windows registry
- Incomplete installation of an application that supports the ABBU format
- The ABBU file which is being opened is infected with an undesirable malware.
- The computer does not have enough hardware resources to cope with the opening of the ABBU file.
- Drivers of equipment used by the computer to open a ABBU file are out of date.
If you are sure that all of these reasons do not exist in your case (or have already been eliminated), the ABBU file should operate with your programs without any problem. If the problem with the ABBU file has not been solved, it may be due to the fact that in this case there is also another rare problem with the ABBU file. In this case, the only you can do is to ask for assistance of a professional staff.
Similar extensions
| .ab | Google Android Debug Bridge Backup Format |
| .aba | Palm Address Book Archive Format |
| .abbu | Apple Address Book Archive Format |
| .abf | Adobe Binary Screen Font Format |
| .abk | Ability Write Backup Format |
| .acp | Alfresco Exported Repository Format |
| .adi | Active@ Disk Image Format |
| .aea | Ae Timer Alarm Document Format |
This extension
can be converted to:
How to associate the file with an installed software?
If you want to associate a file with a new program (e.g. my-file.ABBU) you have two ways to do it. The first and the easiest one is to right-click on the selected ABBU file. From the drop-down menu select "Choose default program", then click "Browse" and find the desired program. The whole operation must be confirmed by clicking OK. The second and more difficult to do is associate the ABBU file extension to the corresponding software in the Windows Registry.
Is there one way to open unknown files?
Many files contain only simple text data. It is possible that while opening unknown files (e.g. ABBU) with a simple text editor like Windows Notepad will allow us to see some of the data encoded in the file. This method allows you to preview the contents of many files, but probably not in such a structure as a program dedicated to support them.