Do you have to cook a precooked ham to eat it?

if the ham has been opened (ie:no longer air-tight) it can be left in the fridge for 3-4 days. if it has not been opened yet, it's good until the "use by" or "sell by" date. I can't eat an entire ham by myself before it goes bad, so what I do is open it, cut it into sections and wrap them in foil & freeze. If I take a section from the freezer, it must be eaten within 3-4 days.