File Extension Database

Open ISU File

The ISU file format and extension is primarily used for InstallShield Uninstall Script Format.

The ISU format is basically an uninstall script and is run directly by the InstallShield software installation program.

The ISU extension stores a useful script for uninstalling programs and is based on the InstallShield application.

The ISU file script is created to find and remove files related to a specific program, since it has the paths and records related to those files, thus ensuring their complete removal from the computer.

The ISU format was developed by Flexera Software, also creator of InstallShield Uninstaller Script, hence the initials of the extension, for the InstallShield software series.

How Can I Open ISU File on Windows

We researched and learned that the best way to open ISU file is to find a ISU file in question in Windows OS File Explorer and double click on it to launch the corresponding application.
If a ISU file is not opened in an application and you instead get a "Windows can't open a file" error message you should try looking for an application which can open the file in question.
If you know the application which can open ISU file then run it and see if there is a File->Open main menu option in the application.
If you don't know the application which function as ISU file opener then try to search online for "ISU viewer", "application to open ISU file" or "open ISU file" queries in the search engine you like.
Install the application you found and check if it can open ISU file

How Can I Open ISU File on Mac OS

We recommend to find a ISU file in question in Mac OS Finder and double click on it to launch the corresponding application.
If a ISU file is not opened in a Mac OS application and you instead get a "There is no application set to open the file" error message you can click on "Search App Store" in the error dialog and Mac OS will show you applications compatible with ISU file.
If you know the Mac OS application which can work as ISU file opener you can choose the "Choose Application..." option in the error box to associate the file extension and open ISU file in it.
If you don't know the application which can open ISU file then try to search for "ISU viewer", "application to open ISU file" or "read ISU file" queries in the online search engine you like.
Install the application you found and check if it can read ISU file

How Can I Open ISU File on Android

If you downloaded a ISU file on Android device you can open it by following steps below:

In the Android apps list on your Android device find "My Files" or "File manager" app and tap to start it.
Tap on "Downloads" folder inside the app.
You should see your downloaded ISU file in that folder.
Tap on the file. If Android device supports opening the file you downloaded it will open in the corresponding app.
If file does not open you can look for the corresponding app that can open the file by searching Android App Store for the "ISU".
If you cannot open the file with the apps from Android App Store it is possible that the file could only be opened on desktop platforms such as Windows or Mac OS. Try searching for "ISU viewer", "ISU file reader" online and see if any desktop applications can open it.
It is also possible that the file you downloaded is outdated and is no longer supported.

How to Open ISU File on iPhone or iPad

To open ISU File on iOS device follow steps below:

We advies to open Files app on your iPhone or iPad device. You can find it by swiping down on the home screen and typing "Files" in the search bar.
Tap on the Downloads folder on the Files app home screen.
You will see all files that you recently downloaded. Tap on the ISU file to view it.
If you have the right app that can open it it will automatically launch and open your file.
If you don't have the app which can open it you need to serch Apple app store for "ISU". This way you can find apps which can open ISU files.
If this doesn't help it is possible that your file could be opened only by the desktop application. To find an app which can open it on desktop look for "ISU viewer" or "ISU file" online in your favorite search engine.