Excel 2003 - updating multi worksheets..

Hi Guys,
Is there an easy way to update multiple worksheets in one go?
To explain: -
I have worksheets named by months (Fiscal year all in the same workbook) if I alter, say a formula, in Aprils' sheet is there an easy way to alter all the rest without using the 'Copy & Paste' method?
Appreciate your help as always.
Thanks

If they are in the same relative cell, you can group all the spreadsheets within the workbook by holding down the control key and clicking on whichever tabs you are interested in. Then whatever you type in the active sheet will appear in the other worksheets as well. Is this what you are looking for?

ChemistB

ChemistB you are an absolute diamond!
I knew there must be a way to do it.
I always tend to look for the most complex answer - I really must get out more.
Many, many thanks - much appreciated.