I haven't tried the freeware IrfanView graphics file viewer in a long time. But, it was pretty good the last time I tried it a couple of years ago and continues to have good buzz from its current users. Its About page lists features well beyond simple file viewing including some graphic editing (e.g., sharpening, cropping, rotating) as well as image batch processing. The current version was released just a week ago on Nov. 16.