What is a .MSI File And How To Open It – Microsoft (Simple Steps)

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Have you downloaded a file with .msi extension, but you are not sure what it is? You most likely know what the file is, but you might be unsure on how to open it. Don’t worry! This article explains everything about the .msi file extension, how to open and work with it on various systems.

What is a .MSI file?

The file extension .MSI is Windows Installer Package. The development of this file was done by Microsoft. This file belongs to the binary format and it is a miscellaneous file.

What to know

There are currently 2 software that can open the .msi file on 1 platform.

How to open a .MSI file?

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

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

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

1. In the first step you need to download the 7-Zip software. This software will be used for opening the file. Other software that can be used in opening this file is: Microsoft Windows Installer and 7-Zip.

Step 2

Step 2: Locating your .MSI 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 7-Zip software that you have downloaded. Click on the software and click “OK”. Congratulations! You have opened your file on Windows.

Still cannot open the .MSI file?

If you are still unable to open the .MSI file, it might be because you are trying to open the wrong one. There are many similar file extensions that look like the .MSI file.msif – Avanquest, .msim – mSeven Software, .msix – Microsoft, .msixbundle – Microsoft, .msixupload – 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 .MSI file with the 7-Zip, Microsoft Windows Installer programs on Windows.