How do i need to open a .tff to get a DirectX11 texture?

I want to render true type fonts in DirectX11, right now in one program im using stb_truetype.h to get the position and texcoords from every character i want. And in other one, i have DirectX11 with a texture that i can fill it with some information, in this case the .ttf info. But how do i need to open the .tff to tell the texture something like: "Hey, these are the coordinates you need, copy that pixels and fill yourself"?