What is a .NST File And How To Open It – Microsoft

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Have you came across a file with the .nst extension, but it is a file you have never seen before? You most likely know what the file is, but you might be unsure on how to open it. Thanks to this easy guide you will be able to find out what .nst file extension is, how to open it and how to work with it.

What is a .NST file?

The .NST file extension stands for Outlook Connector for Notes File. The development of this file was done by Microsoft. 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 .nst file on 1 platform.

How to open a .NST file?

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

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

The .nst file can be opened in 4 steps on Windows.

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. Other software that can be used in opening this file is: Microsoft Outlook 365.

Step 2

Step 2: Locating your .NST 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 Microsoft Outlook 365 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 .NST file?

If you cannot open the .NST file, it is entirely possible that you are trying to open the wrong file. The .NST file extension is similar to other file extensions such as: .nsv – Nullsoft, .nsx – NS BASIC, .nsz – nicoboss, .nt – Microsoft, .nt – theWord Bible Software. 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 .NST file with the Microsoft Outlook 365 program on Windows.