about preserving the olives, thanks a lot, maybe you know how to

I have found incredibly good tasting olives when visiting New York recently. So, I have bought a pound and we have enjoyed it while with friends in New York. But I have also bought a big (about 5lb) can and brought it home. I have never had olives in such big quanbreasty and am little afraid that it will spoil fast and I will loose most of it. So, what should I do? Please, be specific and try to give me a specific answer similar to the manner that I am asking, so I will not make a mistake, because chances are next time I will buy it again are very small.

So here are the questions: A. After opening the aluminum can, where should I put the content; in the plastic, glbutt, or anything else type of container?

B. Do I put this container with olives in refrigerator, freezer, or just keep it open in the normal kitchen temperature?

C. How long can I keep it?

D. If I see on the can where it was made, is it possible to buy from the manufacturer another big can?

E. What if manufacturer is in another country?

F. Will the store that has sold it to me, sell me another one over the phone and sell via the mail?