What is the best way to quickly compare your results on a map between consecutive years? Check the Choose data range option that allows you the quickly switch between various options.
What if your map has parts that are very detailed? No problem. You can use a great built-in Excel functionality called Paste as Linked Picture. Just copy & paste cells behind the shapes and edit the picture.
The default label in Excel Map, that is shown after clicking the shape (or a point on bubble chart), shows the name of the area, its parent (if there is any) and the value that can be found in the column G of Data sheet. How to edit this label?