MacOS compatibility across different versions

[Kwyrky]

check this thread for hopefully some useful information.

What is needed to make a file runnable?

I sent a published project to a friend who is using Mac OSX. Unfortunately the file would not run. A message pops up basically saying no executable file is found for the file to open it with. Anybody here who knows what steps are needed to run a MonoGame application on Mac OSX? Maybe it is a security thing because I am not a registered Apple dev?