This action create Windows Installer MSI files for the input exe file.

what exe file to wrap in the built MSI

what version to use for the built MSI, default is 0.0.1

The Windows installation files for the input exe file

 - name: Build Windows Installer MSI from exe file
 uses: AliceOh/CreateWindowsInstaller@1.0.0
 with:
 exefile: 'helloworld.exe'

a real example is here: https://github.com/AliceOh/ExampleUseWindowsInstallerGithubAction