Is there a way to programmatically query the cell contents for a range?

[RyleySill93]

How can I get the cell contents for the highlighted range here? I'd expect something back like `[[9.82, 7.57],[155, 296]]`. The "cellSelectionChanged" event only returns the coordinates of the selected range, not their actual contents. Since I can copy these values directly out of the spreadsheet viewer instance, I'd expect to be able to get them some other way?