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. If ...

Lists of phone numbers are very common with Microsoft Excel editors. In the case of landline and foreign phone numbers, adding the country code is important, or the caller will never be able to dial ...

Use Excel data validation to prevent duplicate values in a column Your email has been sent Prevent duplicates before they happen by combining a simple function with data validation. Excel has built-in ...