When you type a seven-or-ten-digit phone number into an Excel cell that uses the phone number format, Excel will automatically change the way the number looks so that it appears as a phone number ...

Combine an Excel custom format with data validation and remove the pressure for input perfection from personnel by letting Excel do the work.

How Do I Change Hours & Minutes Into a Decimal Number in Excel?. In addition to its basic spreadsheet functions, Microsoft Excel also allows writing formulas to perform functions on existing data.