If I have one Excel file open (file A.xls) and then I want to copy over stuff from another one (file B.xls), it opens in the same Excel app instance. Thus, I have to go between different windows (from the menu options) to see + copy data over, etc. Likewise, if I attempt to close one, all open Excel files will also be forced to be closed.

My goal is to be able to use my dual monitor setup to be able to view two spreadsheets at the time, one per monitor. This seems to be specific to Office 2003 and I have no idea how to get rid of it. Any ideas? This has become very frustrating.