Hi, thank you for liking and wanting to use my fonts! :)
Unfortunately windows only accpets truetype fonts.
Truetype font (.ttf) files basically contain vectors of the outline of each character, and therefore only do solid color fonts. They don't support fonts with different tones/colors.
The angelcode format (.fnt) files are bitmap fonts, meaning they contain the raster image of all characters. They can be used with many game engines and libraries.
Depending on what you want to use them for, I might be able to help.