What is a .AFF File And How To Open It – Basis Technology (Guide)


Have you came across a file with the .aff extension and you don’t know 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 .aff file extension is, how to open it and how to work with it.

What is a .AFF file?

The .AFF file extension is AFF Disk Image. The development of this file was done by Basis Technology. This disk image file is in binary format.

What to know

There are currently 2 software that can open the .aff file on 1 platform.

How to open a .AFF file?

Below we have written a comprehensive guide on how to open the .AFF file on various operating systems.

How to open a .AFF file on Windows (7, 8, 10)

To open the .aff file on Windows, please follow these 4 easy steps.

1. In the first step you need to download the GetData Mount Image Pro software. This software will be used for opening the file. The other software that you can use is PassMark OSForensics and GetData Mount Image Pro.

Step 2

Step 2: Locating your .AFF file

2. The second step is locating the downloaded file. The file can be usually found in your /download/ folder if you don’t remember where you have downloaded it to.

Step 3

Step 3: Choose “Open with”

3. In the third step, after locating your file, right click on it and click “Open with”.

Step 4

Step 4: Choose the software and click ok

4. In the fourth step, after clicking “Open with”, you should see the GetData Mount Image Pro software that you have downloaded. Click on the software and click “OK”. That’s all, now you have opened your file on Windows.

Still cannot open the .AFF file?

If you cannot open the .AFF file, it is entirely possible that you are trying to open the wrong file. There are many similar file extensions that look like the .AFF file.aff – Spellcheck Dictionary Description File. You might be trying to open one of them. Please recheck the file extension again.


In this article you have learned how to open the .AFF file with the GetData Mount Image Pro, PassMark OSForensics programs on Windows.