For a good few of them they are ruined at this point if they are ground spices. Maybe not ruined, but they will have lost a great deal of flavour. Usually ground spices start to lose their flavour after about 6 months.
You’d be as well to dump them and buy fresh, but you can also revive them by gently warming them in a dry pan.
Whole spices will stay fresh for much longer, easily a couple of years. Dried herbs will maybe get 2-3 years.
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