How do I play this video

I have download a video that have been repack. I has roo, ro1, ro2 and so on in the file decription. How do you play a video file like this

They look like .rar files. You’ll have to unpack them with Winrar.

you can try 7-Zip too and its free get it here…
http://www.7-zip.org/download.html