What is a .BSA File And How To Open It – Bethesda Softworks (Easy Guide)

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Have you came across a file with the .bsa extension, but it is a file you have never seen before? You most likely know what the file is, but you might be unsure on how to open it. That’s why you are here! We have made this guide for you to learn more about the .bsa file extension and how to open it.

What is a .BSA file?

The file extension .BSA stands for Bethesda Softworks Archive. It was developed by Bethesda Softworks. The format of this file is binary, and it is a game related file.

What to know

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

How to open a .BSA file?

Below we will show you a step-by-step guide on how to open the .BSA file on various operating systems.

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

Below you can see a visual guide on how to open the .bsa file on Windows in 4 easy steps.

1. The first step is to download the Fallout mod manager software. You will be using this software in order to open the file.

Step 2

Step 2: Locating your .BSA 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 Fallout mod manager software that you have downloaded. Click on the software and click “OK”. Congratulations! You have opened your file on Windows.

Still cannot open the .BSA file?

If you cannot open the .BSA file, it is entirely possible that you are trying to open the wrong file. There are many similar file extensions that look like the .BSA file.bsb – Take-Two Interactive Software, .bsc – Microsoft, .bsd – IEEE, .bsdesign – Zine, .bsdiff – BSDiff Patch 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 .BSA file with the Fallout mod manager program on Windows.