Thanks w2e and other forum members for replywaiting 2 exhale said:take a copy of application forms and supporting documents that you had submitted (they rarely ask to see already copies of submitted application but if NDVO fumbles around looking for document in the computer you can impress him/her by offering to provide a hard copy of that document); updated files (supporting documents since the time of application submit - if you had communication with sponsor since the submission, get print outs; if your sponsor had visited you since the submission takes copies of pictures, ticket stubs, plane boarding pass/train tickets/ tourist place fees etc); anything that provide more support to relationship proof.....as for documents to get in they would require passport (if already submitted they would have listed other acceptable documents in the interview letter)....good luck...
I really apricitate your effort ...
Thanks again