individual worksheet email notification script needed

Hi,

I have a file that is shared across SharePoint and I am looking to receive a notification via email if one of the sheets is changed. Each sheet in the excel is for a different staff member.

I have found script to email if any of the workbook is changed and an email is sent, but I looking to have script that email only the staff member whose sheet has changed.

I apologize if this is in the wrong area.

Thanks in advance.