You need VBA to write it when saved

Private Sub Workbook_BeforeSave(ByVal SaveAsUI As Boolean, Cancel As
Boolean)
Range("A1").Value = Format(Now, "dd mmm yyyy hh:mm:ss")
End Sub

'This is workbook event code.
'To input this code, right click on the Excel icon on the worksheet
'(or next to the File menu if you maximise your workbooks),
'select View Code from the menu, and paste the code

--

HTH

RP
(remove nothere from the email address if mailing direct)


"Bob Provis" <Bob wrote in message
...
How may I set a shared excel file to only update a present time and date
field when the sheet has actually been modified and saved?
OS = MS 2000 pro
Excel = 2000