Whey Protein (expired) (Swinton M27)

I've had these in storage for about 3 years.
They've both expired.....so I don't know if you can still use them, Google gave mixed answers.
One is sealed and one is open. The open one seems to still be in ok condition - it doesn't smell bad and it's not clumped together.
If nobody wants them I'm just going to bin them.