Well thats an interesting question. For the castling part you should get it done with the vast majority of openings, for the open file bit I'd say you should start with e4, and you will get an semi open or open centre file the vast majority of the time. Possible openings could be the King's gambit, the open sicillian, the main line caro kann, or the scandinavian- which all give open files to white.
As for black, if you want an open file, vs e4 I'd say go with the scandinavian d5, which will give you a half open d file, and vs d4 play something like the semi slav, which should give you the same after pawn exchanges. :)
As the topic name suggests, I'm looking out for some good opening moves that I can use to have a strong center file and also to castle . Plz help me!

Thanx...