RAR files are the same as zip files, you need to extract the mod from them. You can use a program like 7zip or WinRAR to open them.
that's the problem, I don't have a zip file, only a document who doesnt work in game because I don't have the script modificator :)
You won't get a zip because I uploaded a rar file, but you treat it the same way as you would a zip: extract the files from it and install them in your Mods folder. The game won't read a rar file so this is an absolutely necessary step.
Hi again, thanks a lot for your patience, I extract the file and it's work fine ! <3
