Yes. Open them both at the same time, build the driver first, then when you need to pull data in to the driven one just point at the right cell. I don't see why you have formatting issues.
Incidentally congratulations for the most redundant and least informative thread title I have seen in a while. Oh well, I suppose it could have been "Need help with a spreadsheet".
Cheers
Greg Locock
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.