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.

Microsoft Excel has a feature that allows you to convert a number into a date, which is quite simple to do. This tutorial explains the steps to convert a number into a date format in Excel.

If the Excel cell format is not changing to a number because the Number formatting is not working, take these steps to fix the issue.