What is a .ABCDDB File And How To Open It – Apple


Have you downloaded a file with .abcddb extension, but you are not sure what it is? You most likely know what the file is, but you might be unsure on how to open it. In this article we will explain what .abcddb file extension is, how to open it and how to work with it.

What is a .ABCDDB file?

The .ABCDDB file extension is from Apple Address Book Contact List. The development of this file was done by Apple. The file is a database related file.

What to know

There is currently 1 software that can open the .abcddb file on 1 platform.

How to open a .ABCDDB file?

In this part of the article we will show you how to open the .ABCDDB file on various operating systems.

How to open a .ABCDDB file on Mac

To open the .abcddb file on Mac, please follow these 4 easy steps.

1. In the first step you need to download the Apple Contacts software. You will be using this software in order to open the file.

Step 2

Step 2: Finding your .ABCDDB file

2. The second step is locating the downloaded file. If you don’t remember where you have downloaded your file to, you should check your /download/ folder as it usually gets automatically saved there.

Step 3

Step 3: Clicking “Open with”

3. In the third step right click on your file and choose “Open with”.

Step 4

Step 4: Choosing the software to open your file

4. In the fourth step, after clicking “Open with”, you should see the Apple Contacts software that you have downloaded. Click on the software and click “OK”. Congratulations! You have opened your file on Mac.

Still cannot open the .ABCDDB file?

If you cannot open the .ABCDDB file, it is entirely possible that you are trying to open the wrong file. There are many similar file extensions that look like the .ABCDDB file.abcdp – Apple, .abdata – Adobe Systems, .abf – Adobe Systems, .abf – Microsoft, .abi – DNA Chromatogram File. You might be trying to open the wrong file, please recheck if you are trying to open the right file extension again.


In this article you have learned how to open the .ABCDDB file with the Apple Contacts program on Mac.