Only via code...

Option Explicit
Private Sub Workbook_BeforePrint(Cancel As Boolean)
With Me.Worksheets("sheet1")
.PageSetup.CenterFooter = .Range("a1").Text
End With
End Sub

If you're new to macros, you may want to read David McRitchie's intro at:
http://www.mvps.org/dmcritchie/excel/getstarted.htm

If you want to read more about these kinds of events:

Chip Pearson's site:
http://www.cpearson.com/excel/events.htm

David McRitchie's site:
http://www.mvps.org/dmcritchie/excel/event.htm


Laura wrote:

Is this possible?

--

Dave Peterson