It looks great, but exporting functions don't works in the Windows version. When I clicked GIF, PNG or SPRITE SHEET there isn't a .gif, .png file on the folder where the program run. I'm very sad 'cause I need a utility like this for my game. :-(
Oh very strange, I just tested it and it seems to work for me. Maybe you could use the browser version if you can't get the windows one to work.
