A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
It occurred as part of a redesign of the Save As dialogue window so while I'd love to think it's a bug or an oversight that will immediately be corrected, it appears intentional. The ability to name the spreadsheet without the extra click is welcome but is totally negated by not being able to get to the main 10 folders I use. I'd much rather keep the existing pinned folders functionality as now it's more steps than before to save a spreadsheet where I want it saved.