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ABCDDB file extension

The table below provides useful information about the .abcddb file extension. It answers questions such as:

  • What is the .abcddb file?
  • What program do I need to open a .abcddb file?
  • How can the .abcddb file be opened, edited or printed?
  • How can I convert .abcddb files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Apple Address Book Contact List Database

ABCDDB file is an Apple Address Book Contact List Database.
ABCDDB format description not yet available
Category: Data files
Application: Mac OS X
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
ABCDDB aliases:
ABCDDB related links:
ABCDDB related extensions:

Other types of files may also use the .abcddb file extension.

🔴 Can't open a .abcddb file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .abcddb file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .abcddb file extension, write to us!

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