What is a .MGTHEME File And How To Open It – Mariner Software (Easy Steps)

Table of Contents


While downloading files, you might have downloaded a file with the .mgtheme extension. It is important to know how to open this file – in order to be able to work with it. Fear not, in this article we will show you how to easily open the .mgtheme file in few simple steps on various systems.

What is a .MGTHEME file?

The file extension .MGTHEME stands for MacGourmet Theme File. This file extension was developed by Mariner Software. This settings related file is in text format.

What to know

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

How to open a .MGTHEME file?

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

How to open a .MGTHEME file on Mac

To open the .mgtheme file on Mac, please follow these 4 easy steps.

1. In the first step you need to download the Mariner MacGourmet Deluxe software. You will be using this software in order to open the file. You can also use Mariner MacGourmet Deluxe software.

Step 2

Step 2: Finding your .MGTHEME 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: Clicking “Open with”

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

Step 4

Step 4: Choosing the software to open your file

4. After choosing the “Open with” option, you will have an option to choose the Mariner MacGourmet Deluxe software you have downloaded. Click on the software and click “OK”. That’s all, now you have opened your file on Mac.

Still cannot open the .MGTHEME file?

If you cannot open the .MGTHEME file, it is entirely possible that you are trying to open the wrong file. There are many similar file extensions that look like the .MGTHEME file.mgtx – MindGenius, .mgv – Sony, .mgv – Yamaha, .mgw – Mr. Game And Watch ROM File, .mgx – Microsoft. 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 .MGTHEME file with the Mariner MacGourmet Deluxe program on Mac.