Can soil get to dry to use or go bad?

I recently got some fox farms ocean forest soil but i got a huge bag of it and it was way more than i thought. The size of the bag isnt a problem but im not going to be using most of it for awhile. Im going to start like 2-4 plants tommorow or the next day, theyre germinating now.

I was wondering, once the bag of soil is opened, can it go bad or get to dried out to use????

This may seem like a stupid question but i dont want to waste a whole bag of soil by accident so i want to know before i open the bag.

Also can peat pots get dried out or go bad if they are old?