What is a .MS-TNEF File And How To Open It – Microsoft (Easy Guide)

Table of Contents

Introduction

Have you came across a file with the .ms-tnef extension and you don’t know what it is? 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 .ms-tnef file extension and how to open it.

What is a .MS-TNEF file?

The file extension .MS-TNEF comes from MS Transport Neutral Encapsulation Format. This file extension belongs to the developer Microsoft. The file is a miscellaneous file.

What to know

There are currently 2 software that can open the .ms-tnef file on 2 platforms.

How to open a .MS-TNEF file?

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

How to open a .MS-TNEF file on Windows (7, 8, 10)

To open the .ms-tnef file on Windows, please follow these 4 easy steps.

1. In the first step you need to download the Microsoft Outlook 365 software. This software will be used for opening the file. You can also use Microsoft Outlook 365 software.

Step 2

Step 2: Locating your .MS-TNEF 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: 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 Microsoft Outlook 365 software that you have downloaded. Click on the software and click “OK”. Congratulations! You have opened your file on Windows.

How to open a .MS-TNEF file on Mac

We have written below an easy-to-understand guide on how to open the .ms-tnef file on Mac in 4 easy steps.

1. In the first step you need to download the Microsoft Outlook 365 software. You will be using this software in order to open the file. The other software that you can use is Apple Mail and Microsoft Outlook 365.

Step 2

Step 2: Finding your .MS-TNEF file

2. The second step is locating 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 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 Microsoft Outlook 365 software you have downloaded. Choose your software and click on “OK”. Congratulations! You have opened your file on Mac.

Still cannot open the .MS-TNEF file?

If you are still unable to open the .MS-TNEF file, it might be because you are trying to open the wrong one. There are many similar file extensions that look like the .MS-TNEF file.mstxt – Nintendo, .msu – Microsoft, .msv – Sony, .msw – Corel, .mswmm – Microsoft. You might be trying to open the wrong file, please recheck if you are trying to open the right file extension again.

Conclusion

In this article you have learned how to open the .MS-TNEF file with the Microsoft Outlook 365 program on Windows and Microsoft Outlook 365, Apple Mail programs on Mac.