DayZGuru

If you mean DayZ then just walk up to the door and watch for the <> sign, then press F and it should open. If you want to close the door, do the same but with the >< sign instead.

This is a topic about DayZ which I clearly state, and if you did not read it, have you not seen my name? It says DayZGuru, not Google.

Hello, I am the DayZ Guru. No, I'm not. I'm just a guy that knows a lot about the game and I'd be happy to answer all your questions about it. This way of posting here is much faster and easier than trying to look up guides that might not even give you the answers that you were searching for in the first place. Here you won't have that problem. I will be reguraly checking in on this topic to answer ever question I get, so if you have a question, post it below. :)