I created a data validation rule for a set of cells in my Google Sheet so that I could have a simple drop-down and could select items as I type. However, Google Sheets always displays its own autocomplete dialog when I start typing with the "@" symbol, which displays options from my contacts, files, emails, calendar, etc.
I literally never want these options, yet I cannot find a way to turn it off. Does anyone out there know how to turn this off?