A cry for help

Im downloading the evocity2 vehicle pack right now and I have no idea where to put it, Im a total noob when it comes to this kind of thing and Im requesting the help of people so I can be not so stupid in the future. Any important information or files I need for downloading Evocity 2 all together would also be greatly appreciated.

alright, do you have winrar or winzip?

I have winace


oh the file is rar