Could you clarify which of those you’re interested in? Once I know, I can give you a more detailed "piece" on it.
: Are you asking about the legitimacy or safety of a specific download file you've found with that name? Project.Zomboid.v41.78.12.rar
In the meantime, are you currently playing through the content, or are you just getting started with the game? Could you clarify which of those you’re interested in