Jul 12 2022
Today I spotted an excel problem when editing a spreadsheet opened from Dropbox.
It seems that excel is saving edits while editing and those saves are not synced to dropbox. This results in a situation where syncing doesn't end correctly.
It is a bug.
A workaround is to forcefully close the app and restart it... but once you step out of it the problem reoccurs.
Hope that MS fixes this soon!