You need some VBA code to do this:

You can use the workbook_beforeprint event to modify the header.

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

This goes behind the ThisWorkbook module.

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

John in Surrey wrote:
>
> Hi folks
> Can I customise the header so the left section = the content of a cell
> in the sheet eg A1.
> All I seem to be able to do is add date, page etc etc..
> thanks
> john
> Images of home (NZ)
> http://www.titahi-bay.co.nz/home
> What we are up to in the UK
> http://www.titahi-bay.co.nz

--

Dave Peterson