What it does
Turns text dates, number based dates and mixed styles into real Excel dates and applies the display format you choose. You can write the result to a new column, which is the safe option, or change the same cells. It recognizes dates written with dots, slashes, dashes or spaces, and plain date numbers such as 46590. An impossible date is left as it is so nothing is guessed wrong.
Your data is processed on your own computer. Your Excel contents are never shared with AI services.