if you are talking about File.000, 001, 002, 003 etc. Then it is problaly a hjsplit file but like you said it doesn't work you are problaly ending up with something called "File", remember that PANTHEON released the Windows vista dvd in this manner 000,001,002,003...0047 nobody knew how to open it but all you had to do was right click and extract here. Hope that clears it up otherwise you got a f'd up file