I don’t know either, perhaps would it have to do with the spaces in your filename? maybe it doesn’t like that… Anyway, there will probably be an error message in the console (being on windows, it should be sitting behind Blender). If you find that error message and post it back here someone who knows python can help you. I’d recommend to start a new thread too, so this one doesn’t go offtopic and so more people can see your problem and help you.
cheers