I have a little question regarding ASCII Codes. Is it possible to to find out what type of encoding is used in C++ for ASCII extended values?

I want to try and find a way to decode a game animation source file without having to de-compile the game source which is not allowed. I simply want to understand whats going on in the file and maybe modify it slightly so I can make some small changes. The extension used is .pma and the engine I believe is "Prism3D". I can open the file with a hex editor and an example might be :

HEX: Bana çok okunabilir değil bazı ASCII Extended değerleri verir 7C 2E C8 40 EC 15 22.

Ben c + + ile hiçbir deneyimi var ama complier / de-derleyici aracı çeşit dosya okunabilir hale getirmek için PHP ile oluşturulan gönderdim eğer merak ediyorum?

Kindest Regards, Phil.