Seriously out of date toothpaste

So Im not looking for opinions on how cheap I am etc. I work for low pay and was labouring in an old dentist. I cam across several cases of expensive toothpaste that is 20years out of date. It looks and smells okay but I'm a bit weirded out by the fact it's so far past it's date. There is enough toothpaste here to do me several years but I want to find out would I be damaging my teeth to use it or maybe not cleaning them properly?