Hello all, I am in the middle of "recovering" some old bitcoin I have on a old computer, (this might be called bitcoin original, my terms might be wrong, but I think it is an "old version" and on one of the guides I was reading brought up a very good point. --- I need a new place to put the coins.  I have an old ".dat" file

I was hoping you guys could point me in the right direction.

I also had very little litecoin as well, if that could be "housed " in the same system that would be convenient, but that is not something I need.

I would prefer something that is basically "local only" , where I can keep track of my address, or some files, to ensure I never lose my bitcoin, I don't really want any online websites I have to go through to get to my coins, if that is possible, because something as simple as the website going down might mean my coins are lost, or if that third party gets hacked or something.

Easy is better then hard.

Any guidance is very very much appreciated, trying to get this all sorted this weekend.