This little beauty runs throught all your sheets and updates the header and footer. Modify where needed to fit your needs!
Put this in your Personal.xls macros, and use it for all your files.
Sub Header_Footer_All_Sheets() Set wkbktodo = ActiveWorkbook For Each WS In wkbktodo.Worksheets With WS.PageSetup .LeftHeader = "" .CenterHeader = "&""-,Bold""&14&A" .RightHeader = "" .LeftFooter = "&9Bestandslocatie: &Z&F" & Chr(10) & "Geprint op &D &T" .CenterFooter = "" .RightFooter = "&9Pagina &P van &N" .ScaleWithDocHeaderFooter = False End With Next End Sub
Source: Excelforum.com