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.

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 allows you to crunch massive quantities of data easily through the use of functions. Sometimes you need to know the number of actual data points without counting blank cells.

Percentages aren't always easy to calculate, but one of the best tools in Excel's toolbox is calculating percentages for you. Here's how to do it.