What is a .MFIL File And How To Open It – Blizzard Entertainment (Easy Guide)

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Have you downloaded a file with .mfil extension, but you have never seen this extension before? Perhaps you know what the file is, but you simply don’t know how to open it. Don’t worry! This article explains everything about the .mfil file extension, how to open and work with it on various systems.

What is a .MFIL file?

The .MFIL file extension is Blizzard Software Update File. The development of this file was done by Blizzard Entertainment. This miscellaneous file is in text format.

What to know

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

How to open a .MFIL file?

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

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

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

1. In the first step you need to download the Blizzard Diablo 3 software. This software will be used for opening the file. You can also use Blizzard World of Warcraft and Blizzard Diablo 3 software.

Step 2

Step 2: Locating your .MFIL file

2. In the second step you need to locate 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 Blizzard Diablo 3 software you have downloaded. Click on the software and click “OK”. Congratulations! You have opened your file on Windows.

Still cannot open the .MFIL file?

If you cannot open the .MFIL file, it is entirely possible that you are trying to open the wrong file. The .MFIL file extension is similar to other file extensions such as: .mfl – Mozilla, .mfl – Verity Software House, .mfo – Perl, .mfo – Neato, .mfo – MobileFrame. 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 .MFIL file with the Blizzard Diablo 3, Blizzard World of Warcraft programs on Windows.