How many times can you Undo in Excel? By default, Excel allows users to undo changes up to 6 times. However, it is possible to change the number of undo levels in Excel.

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 ...

You can add a zero before a number in Google Sheets and Excel using this tutorial. You need to change cell formatting or use function.

Excel filters help you find exactly what you want, no matter how big your spreadsheet database is. Here's how to set number, text and data filters.