So I download a couple torrents XVID-topaz in the file name... One of them works perfectly... The other two are just folders with a bunch of files in them .nfo, .rar, .sfv .r00, .r01,etc

How do I use these videos? I downloaded the XVID codecs, VLC player, etc to see if I could fix the issue.

Do I need to download winrar to use this file? Don't want this to end up being something bad because it has a nfo file and could really screw alot of things up.

any suggestions?