Definitely looks interesting, but doesn't work on MacOS. I see you're using Unity, if you need help making it work on other devices feel free to ask
Before you build it in Unity you have to select the target platform in the build menu. At the moment you have Windows most likely because you have a Windows PC. Select MacOS (or Linux). If that is not there then you have to download the appropriate editor first.
If it says nothing other than Windows download the MacOS/Linux... Editor and restart Unity:
It is definitely the right file format but for some reason I still can't open it. But that could be something wrong with my Macbook. May I know which architecture setting you have selected in the build menu? That could be the reason. Maybe try Apple silicon. Otherwise I don't think I can help you any further