It's not a feature of Excel, perhaps you may search on google for this
file monitoring/ notification system.

It's complicated, but you could create some event code that, when
someone makes a change to the file, it uses Outlook to send an email
(ideally, after they hit 'Save' and are exiting the worksheet, to
minimize disruption). However there is no way to do this silently.

  Note that if you share the workbook, when someone hits 'Save' then
the other users that currently have the workbook open do get a popup
notification that 'someone' changed the file (doesn't say who,
though). You could scan the file and the changed cells are
(temporarily) commented. A shared workbook also generates a history
worksheet showing the changes and who made them.

Keep in mind everyone has to update the user name in their copies of
Excel by going to Tools>Options>General and typing in the "user name".

HTH,
JP

On Mar 18, 7:04 am, lk.kumare...@gmail.com wrote: