What is a .CMMTHEME File And How To Open It – MacPaw (Simple Steps)


Have you came across a file with the .cmmtheme 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. In this article we will explain what .cmmtheme file extension is, how to open it and how to work with it.

What is a .CMMTHEME file?

The file extension .CMMTHEME is CleanMyMac Theme File. This file extension was developed by MacPaw. This file belongs to the binary format and it is a settings related file.

What to know

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

How to open a .CMMTHEME file?

Below you can find an easy to understand, step-by-step guide to open the .CMMTHEME file on your operating system/device.

How to open a .CMMTHEME file on Mac

The .cmmtheme file can be opened in 4 steps on Mac.

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

Step 2

Step 2: Finding your .CMMTHEME file

2. In the second step you need to locate 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: Clicking “Open with”

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

Step 4

Step 4: Choosing the software to open your file

4. In the fourth step, after clicking “Open with”, you should see the MacPaw CleanMyMac software that you have downloaded. Choose your software and click on “OK”. Congratulations! You have opened your file on Mac.

Still cannot open the .CMMTHEME file?

If you cannot open the .CMMTHEME file, it is entirely possible that you are trying to open the wrong file. There are many similar file extensions that look like the .CMMTHEME file.cmmtpl – TechSmith, .cmo – ASUS, .cmod – Celestia Development Team, .cmp – Microsoft, .cmp – HotDocs. 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 .CMMTHEME file with the MacPaw CleanMyMac program on Mac.