I am trying the solution you provide, and of course is really a good idea.
Being essential for me the download of the dashboard of Google Analytics data I tried this function, and unfortunately, the ppt file that has generated has some data field as images that are too small to be read by a human eye, or some field is blank, and the graphs are divided into two pieces.
Do you think it is possible to fix these problems?
If you need I can forward you what I obtained, in order to let you understand better.
Best regards.