ISN File - opening and understanding

Did your computer fail to open an ISN file? We explain what they are used for and recommend software that we know can open or otherwise handle your .ISN files.

What is an ISN file?

Files that contain the .isn file extension are most commonly associated with installer source files. These files contain listings of the files that are used by the Installshield utility when the utility is installing software applications on a user's computer.

When a user starts to install an application using Installshield, the Installshield utility will use the ISN file to complete the application process, referencing the file to find out where and how to install the application that is associated with it. Without the necessary ISN file, an application will not be able to install properly on a user's hard drive.

How to open ISN files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension ISN for different purposes.

While we have not verified the apps ourselves yet, our users have suggested 1 different ISN openers which you will find listed below.

Suggest another file format using extension ISN

While we know of one file format using the .ISN file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .ISN file.

Various viewers for this file format

These apps are known to open certain types of ISN files. Remember, different programs may use ISN files for different purposes, so you may need to try out a few of them to be able to open your specific file.

InfoStore ProInfoStore ProUser submitted
We have not verified any software that we know for certain will work with ISN-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with ISN-files. If you know one, please use the 'Suggest a program' link below and tell us about it!