if the look,smell, and taste alright, they should be ok.Things can still be edible for a very long or short time after the expiration date, because that date is just for stores to use as a "sell by" date.
I am baking some Pillsbury grands that had a best buy date of February 2009 so like from 4 to 5 months ago. I got da date mixed up b/c I thought that it meant this coming feb. Anyways after like 4 / 5 months after the best by date are they still okay to eat?