First of all: nobody here assumes responsibility, you should really decide for yourself... but I guess this is not actually an ID request.
Were they ever normal colored? Because if you got them this way it is possible just a lot of spores got on them when they are not harvested in time (do they give off dark purple dusty spores?).. although normally they would only fall on the outside.
How dry are they and how dry were they when you received them? What do they smell of?
Very plainly said I would not eat them, but on the other hand there are situations that would explain why they look like that and still edible - the spores, and they do turn dark when oxidized... however a lot of this is hard to distinguish from charcoal 0_0
Welcome to the forum by the way, but if you ask people for help, you might wanna actually write a post and provide information.. thats just lazy ^ and never passes as an OP.