How can you easily rip one sprite off of a sprite sheet in Paint.net without using the Cirlce, square or lasso tool in Paint.net? If you can'nt please specify which software can, and how to do so.

From what I remember in my spriting years, I only used ms paint to rip the sprites...but that's mainly because I didn't know what Paint.net was back then.

that probably doesn't help much though