Dog food (Weston)

My dogs have allergies to a variety of things so I've got some bags we'll never use the rest of. These were all vacuum sealed when I got them, though the vacuum has broken on some of them.
* The dark brown kibble is the PC Lamb & Rice food, and is very old, forgot it was lying around
* The light brown is Royal Canin Urinary Care & Hydrolized Protein prescription food, fairly new
* The last photo is some "Teenie" Greenies and Whizees, also very old, but none of these have lost the vac seal