What is a .GRP File And How To Open It – SmarterTools (Easy Guide)

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Have you downloaded a file with .grp extension, but you have never seen this extension before? You most likely know what the file is, but you might be unsure on how to open it. That’s why you are here! We have made this guide for you to learn more about the .grp file extension and how to open it.

What is a .GRP file?

The file extension .GRP comes from SmarterMail Group File. This file extension was developed by SmarterTools. This file belongs to the binary format and it is a data related file.

What to know

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

How to open a .GRP file?

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

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

Below you can see a visual guide on how to open the .grp file on Windows in 4 easy steps.

1. In the first step you need to download the SmarterTools SmarterMail software. This software will be used for opening the file. You can also use SmarterTools SmarterMail software.

Step 2

Step 2: Locating your .GRP 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. In the fourth step, after clicking “Open with”, you should see the SmarterTools SmarterMail software that you have downloaded. Click on the software and click “OK”. That’s all, now you have opened your file on Windows.

Still cannot open the .GRP file?

If you are still unable to open the .GRP file, it might be because you are trying to open the wrong one. The .GRP file extension is similar to other file extensions such as: .grp – Blizzard Entertainment, .grp – Microsoft, .grp – Ken Silverman. 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 .GRP file with the SmarterTools SmarterMail program on Windows.