I have a page in a workbook on which I've developed a number of formulas. I have other workbooks I am copying that sheet to. Both the source and destination workbook have worksheet named "main". The formulas being copied are on another sheet named "analysis". The formulas include references to the sheet "main" and then cell references. When I copy the worksheet, the formula has changed in the copy so that it now gives the source workbook name and then the sheet name (main). That means the formulas is working on the data in my original workbook instead of the new workbook. How do I correct this problem? (I am using Excel 2002 and am newer at this than I'd like to be...)