What is a .FM3 File And How To Open It (Easy Guide)

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Have you came across a file with the .fm3 extension and you don’t know what it is? It is possible that you know what the file does, but you are unsure on how to open it. In this article we will explain what .fm3 file extension is, how to open it and how to work with it.

What is a .FM3 file?

The file extension .FM3 comes from FCEUX TAS Editor Movie Capture File. This file belongs to the text and binary format and it is a data related file.

What to know

There is currently 1 software that can open the .fm3 file on 1 platform.

How to open a .FM3 file?

In this part of the article we will show you how to open the .FM3 file on various operating systems.

How to open a .FM3 file on Windows (7, 8, 10)

The .fm3 file can be opened in 4 steps on Windows.

1. In the first step you need to download the FCEUX software. You will be using this software in order to open the file. The other software that you can use is FCEUX.

Step 2

Step 2: Locating your .FM3 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: Choose “Open with”

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

Step 4

Step 4: Choose the software and click ok

4. After choosing the “Open with” option, you will have an option to choose the FCEUX software you have downloaded. Choose your software and click on “OK”. Congratulations! You have opened your file on Windows.

Still cannot open the .FM3 file?

If you are still unable to open the .FM3 file, it might be because you are trying to open the wrong one. The .FM3 file extension is similar to other file extensions such as: .fm3 – IBM. 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 .FM3 file with the FCEUX program on Windows.