Do You Just Eat These or what can you do with them or use them for?

It tells you on the package how to use it,, the leaves are used to make tea, taking the tea once or twice daily can kill cancer cells.

How are these leaves packaged? Are they dried and vacuum sealed to prevent mold?

Not vacuumed sealed. There is a small packet of silica gel, which obsorbs any moisture. The leaves are very dry I found no evendence of would. I purchased another brand with more leaves, I found them not to be as good quality as the Omura soursop leaves

How many leaves do u get in the package?

They said 200 leaves in the package but some of the leave are very small.

I just received my order for my sour sop tea leaves today. However, the expiration date shoes June 1, 2018! Can you please advise?

You should return them. The expiration on mine was 2019 and I purchase Dec. 2018 and the flavor was of old wood. No good at all. The leave taste better when they are fresh.