Since the humidity and temperature were down, I opened up the window last night. Odor seems to be pretty much gone. No obvious odors from the stuff I moved or discarded.
I did open cans and boxes and none smelled. There is a bathroom nearby, but my study was the only one with an odor. No skunk odor or papermills nearby. However, the next door neighbors have been acting strange - eerie lights in the middle of the night and small animals seem to be disappearing. Perhaps preachermen is on to something. I work with a number of priests, may have to get one out here.
Kharn - if the odor in your cans is a bacteria there are several products that will get rid of it. Enter 'cat urine' in a search engine and you should get several options. I learned more about that topic than I ever wanted to after I got the last tenant out of my rental house.
Thanks for the replies.