What is a .VAC File And How To Open It – MikuMikuDance (Simple Steps)

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Have you came across a file with the .vac extension and you don’t know what it is? Perhaps you know what the file is, but you simply don’t know how to open it. Thanks to this easy guide you will be able to find out what .vac file extension is, how to open it and how to work with it.

What is a .VAC file?

The .VAC file extension stands for MikuMikuDance Accessory Settings File. The development of this file was done by MikuMikuDance. The file is a 3D images related file.

What to know

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

How to open a .VAC file?

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

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

There are 4 simple steps to open the .vac file on Windows.

1. The first step is to download the MikuMikuDance software. You will be using this software in order to open the file. Other software that can be used in opening this file is: MikuMikuDance.

Step 2

Step 2: Locating your .VAC 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, after locating your file, right click on it and click “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 MikuMikuDance software you have downloaded. Choose your software and click on “OK”. That’s all, now you have opened your file on Windows.

Still cannot open the .VAC file?

If you are still unable to open the .VAC file, it might be because you are trying to open the wrong one. The .VAC file extension is similar to other file extensions such as: .vac – Oc2.316s Cakit 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 .VAC file with the MikuMikuDance program on Windows.