A family of Microsoft presentation graphics products that offer tools for creating presentations and adding graphic effects like multimedia objects and special effects with text.
Try opening Excel first and leave it running, then launch PowerPoint, open your presentation and try Edit Data again.
Here is an older workaround in the reply marked as an Answer. This one was written for Office 2007, so for your version you would change Office12 to Office16: Powerpoint 2007 chart will not open Excel table when trying to "edit data"