sorry can I have a guide on how to enable it? I am running into some errors. I look forward to the update!
Ah, I see. For shimejis there is no current official support for mac, though you can try this one to see if it will work, though I think it lacks some of the functionality that the pc versions will have (for instance they cannot throw windows).
In terms of the unzipper, you will have to convert it into a rar file which you can try here. That way unarchiever will be able to open it.