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

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Have you downloaded a file with .sed extension, but you are not sure what it is? It is possible that you know what the file does, but you are unsure on how to open it. That’s why we have made this article! You will learn how to open the .sed file extension on various systems, what it is and how to work with it.

What is a .SED file?

The .SED file extension is from IExpress Self Extraction Directive File. It was developed by Microsoft. The file has the text format, and it is a settings related file.

What to know

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

How to open a .SED file?

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

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

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

1. In the first step you need to download the Microsoft IExpress Wizard software. You will be using this software in order to open the file. The other software that you can use is Microsoft IExpress Wizard.

Step 2

Step 2: Locating your .SED 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. In the fourth step, after clicking “Open with”, you should see the Microsoft IExpress Wizard software that 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 .SED file?

If you are still unable to open the .SED file, it might be because you are trying to open the wrong one. The .SED file extension is similar to other file extensions such as: .sed – The GNU Project. 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 .SED file with the Microsoft IExpress Wizard program on Windows.