How to open .rar files

I dont kno how to open them sadly lol im so nub...

But can u show me how plz

use winrar, google it and download the trial

Download Winrar or Winzip both do exactly the same thing to .rar files.
i would recommend winzip because it is a very good and powerful extracter for zipped files aswell (so you get 2 in one
if you are using chrome just click on the download and if it is zipped or .rar it will automatically open in winziprar (depending on which one you have)
if you are not using chrome it should do the same thing although i am not 100% sure.

Hope i helped!
Thank me if i did!!!