How are multiple images combined into a GIF?

Question

How are multiple images combined into a GIF? Is it possible to break them up once they are combined?

Answer 1

Yes, they are extractable. Wikipedia gives you a hint about the technology behind the fileformat. The GIMP is a nice way to edit and separate each frame (as layer for example)

Answer 2

Firstly, you should install a gif image editor. Yes it is possible to do so.