Excel users wanting to display numbers as monetary values, must first format those numbers as currency. To do this, apply either the Currency or Accounting number format to the cells that you want ...

Learn how to format numbers in Thousands, Millions, and Billions in Excel and Google Sheets. Use number Formatting to convert numbers.

For example, Excel will automatically choose the date format for a cell that contains 11/11/19. You can set Excel to display dates in a variety of ways, no matter how you type in the data.