Applying changes to every page of one spreadsheet

[A little stuck]

I have many continuous pages on a 'sheet'. Is it possible for Excel to apply
the changes I make on one page to all pages on that sheet?

Any help would be much appreciated!

 

[Eduardo]

Hi,
Click on the first tab and then holding the Shift key click on the last tab,
that will highlight all the sheets, then go to the cell you need to change
and all the sheets will be updated