Thanks Hector,
Found the answer on those pages ...
"Change tracking differs from undo and backup Unlike the Undo button, you
can't use the change history to back out changes. However, the history
includes a record of any deleted data, so that you can copy lost data from
the History worksheet back to the original cells. Because change tracking
isn't designed to help you return to earlier versions of a workbook, you
should continue to back up workbooks that have change tracking in effect."
Cheers
Kelvin
"Héctor Miguel" wrote:
> hi, Kelvin !
>
> toggling / (un/re)sharing the workbook and/or shring options ?
>
> hope something of the following could be in help
> regards,
> hector.
>
> Troubleshoot change tracking
> http://office.microsoft.com/en-us/ex...034241033.aspx
>
> Changes Excel doesn't track or highlight
> http://office.microsoft.com/en-gb/ex...010681033.aspx
>
> View the History worksheet
> http://office.microsoft.com/en-us/ex...038481033.aspx
> (Note Saving the workbook removes the History worksheet.)
> (To view the History worksheet after saving, redisplay it.)
>
> Troubleshoot shared workbooks
> http://office.microsoft.com/en-us/ex...035371033.aspx
>
> About tracking changes
> http://office.microsoft.com/en-us/ex...300641033.aspx
>
> View tracked changes
> http://office.microsoft.com/en-us/ex...038641033.aspx
>
> Chapter 30 - Workgroup Features in MS Excel
> http://technet.microsoft.com/en-us/l.../cc749856.aspx
>
> __ OP __
> > I am using Excel 2003.
> > I have switched the Track Changes feature on and highlighted my changes.
> > I have accepted a few of the changes and rejected the others.
> > When I close then reopen the file it is possible to highlight the changes again.
> > When I try to click Accept or Reject changes it displays the message
> > "There are no more changes to accept or reject". Not sure why this is?
> > I thought that it was possible to accept or reject changes up to 30 days?
>
>
> .
>