No problem! First off, EXchangeable Image Format or EXIF is a term used with digital photography to describe the settings used when you take a the picture. An example might be something like this:
EXIF: Nikon D300, Nikkor 35mm f/1.8G, handheld, ISO 800, 1/15, f/1.8, -2/3 EV
There are a couple...