Can't play DAT files DAT, Can, files

tom

I just downloaded the win version of xbmc - had it for years on my xbox.  Love the app - glad to see it on pc now.

Anyway, I may have not properly or fully installed it, though it does load.  I can play mkv movies in 720P format.  I tried to play my 1080p DAT Transformers movie, but xbmc does nothing when I click/select the DAT file.  Is xbmc suppose to play DAT files and if so is there something that I first need to load or setup to do so?

Thanks