Please note that this app can only extract .exe files which are valid Inno Setup installer packages. It can't extract just any random .exe file. If you're not sure whether you need this app, you probably don't.
This app is a port of the excellent InnoExtract tool by Daniel Scharrer: http://constexpr.org/innoextract/
This app is licensed under the MIT license. Please feel free to fork or clone my GitHub repository: https://github.com/alanwoolley/innoextract-android