What is a .ISU File And How To Open It – Flexera Software (Easy Steps)

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While downloading files, you might have downloaded a file with the .isu extension. Perhaps you know what the file is, but you simply don’t know how to open it. Thanks to this easy guide you will be able to find out what .isu file extension is, how to open it and how to work with it.

What is a .ISU file?

The .ISU file extension comes from InstallShield Uninstaller Script. This file extension was developed by Flexera Software. The file is a executable file.

What to know

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

How to open a .ISU file?

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

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

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

1. The first step is to download the Flexera InstallShield software. You will be using this software in order to open the file.

Step 2

Step 2: Locating your .ISU file

2. The second step is locating 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 right click on your file and choose “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 Flexera InstallShield software you have downloaded. Click on the software and click “OK”. That’s all, now you have opened your file on Windows.

Still cannot open the .ISU file?

If you cannot open the .ISU file, it is entirely possible that you are trying to open the wrong file. There are many similar file extensions that look like the .ISU file.isx – ESI ITI GmbH, .isz – EZB Systems, .it – Jeffrey Lim, .ita – Joost Verburg, .ita – VTech. 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 .ISU file with the Flexera InstallShield program on Windows.