Email alert whenever the cells within the sheets are edited
I need a workflow, which sends an email alert whenever the cells within the sheets are edited. I have more than 15 columns, and if someone if making any changes to any of the cells after the form is submitted, I need an email alert for such changes. I tried using "when rows are changed" workflow and also "when rows are added or changed" workflow, but of them are generating an email. I do not need an alert when a new form is submitted, but rather need a alert when someone make any edits to submitted data.
Can someone please help me find a solution for this?