Selon le contexte, "et voilà" peut se traduire par : - there! - there you are! - there you go! - voila! - ...
There are many other possibilities, depending on the context. Please, AACO, always give the context of your question, otherwise it is impossible for anyone to give you a good answer.
I know that it is not a translation of "voila", but I think that english will prefer to say : And that's it... The show is already over Don't be sad, we'll be back next week
