What is a .STF File And How To Open It – Microsoft (Guide)

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Have you came across a file with the .stf 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. Fear not, in this article we will show you how to easily open the .stf file in few simple steps on various systems.

What is a .STF file?

The file extension .STF comes from Exchange 2000 Server Temporary File. It was developed by Microsoft. The file has the binary format, and it is a data related file.

What to know

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

How to open a .STF file?

Below we have written a comprehensive guide on how to open the .STF file on various operating systems.

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

There are 4 simple steps to open the .stf file on Windows.

1. The first step is to download the Microsoft Exchange Server software. This software will be used for opening the file. The other software that you can use is Microsoft Exchange Server.

Step 2

Step 2: Locating your .STF 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: 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 Exchange Server software that you have downloaded. Click on the software and click “OK”. Congratulations! You have opened your file on Windows.

Still cannot open the .STF file?

If you are still unable to open the .STF file, it might be because you are trying to open the wrong one. The .STF file extension is similar to other file extensions such as: .stf – 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 .STF file with the Microsoft Exchange Server program on Windows.