Sorry, but you can't. Headers and footers are text strings, and nothing more. The only way to write the value of a cell into a header and footer is to use a macro to insert it, say, whenever the cell value changes.
It may be possible, depending on what you want to do. For example I use a macro to update the "issue number" on a worksheet footer before it's printed out, or automatically, before the workbook is closed.
The issue number is stored in a cell on a worksheet, and updated by one each time the macro runs, after which a message box appears informing the user of the issue number change.
Is this the sort of thing you're after?
....and the meek shall inherit the earth...
(but not the mineral rights!) This message was edited by sykes on 2002-10-03 14:23