Alliedassault - Bittorent Help

Ok, I know some of you guys use it, and yes, I need your help. I downloaded a movie via bittorent, and its an OGM file. It also says XVID.[AM] in the file name. My problem is how do i play it. I try to play it in windows media player, in quicktime, and in divx player, but it doesnt work. I am assuming that is because this type of file is not supported by those players. So my question is, is there a way to convert it or something? I know a lot of you guys use bittorent and other file sharing programs, so im hoping somebody could help me out. Sorry if I sound clueless, Ive tried using bittorent in the past but have always had this problem.