Are you sure you are using WinRar correctly? As Mattk has already mentioned, you need to extract the file/s first.
Just click on your clip, and WinRar will automatically open up.Make sure your clip is highlighted, then click on Extract.A box will open up asking for a destination, and once you have decided where you want to save the clip, click on ok.Your clip will be extracted to that location.All you do then is go to the destination and you should find your extracted clip, but it will now have a different icon (depending on your default player).