Some very nice spreadsheets there at the SEAOC.
But a cautionary tale, I loaded up one sample Excel spreadsheet and, against my better judgment, I let it open with the macros permitted. It was a very nice looking spreadsheet, very impressive.
But now all my own custom menus are gone, even after rebooting. I use(d) these commands many times every day in the course of my work. It's been so long (years) since I set these up that I've forgotten how they work and even where they are. I have some work ahead of me now. Guess I learned my lesson.