Exif Data?

Exif data is embedded in every image; it describes the camera settings, date/time, bit depth, etc. It's easily found by right-clicking the filename in Windows, as you've noticed, and additional software is not necessary. It's imperative to have this data when evaluating one's imaging results; how would we know what to advise as regards changes if we didn't know the current settings?

Of course, you wouldn't necessarily expect someone wandering in here for the first time ever to already know exactly what we'd need in terms of information; Exif is one of those things I like to take every opportunity to mention, even if just for the benefit of those who might be reading and not posting.