Screensaver for mac

Not sure where to post this so move if need be :wink:

I’ve got a screensaver (made in flash) that is being used as a downloadable screensaver.
Works find on windows, but when downloading for a mac, we just get the exe file which is unexecutable on the mac os. I need some way of the screensaver downloading to a users mac and be able to execute and work the same way as on windows.

Any direction is appreciated.