There should be triggers for Excel Sheets as there are for Sharepoint.I believe that combining with Excel online improves team productivity.
There should be a trigger for when:1. An item/row is created2. An item/row is updated3. An item/row is deleted4. A value of an item is changed to certain values
Ideally there should be a trigger when a Excel is saved - then we can update from a table in Excel
Excel triggers....yes please!