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 ...

When you use Excel's Chart Wizard to create a chart, by default the chart takes on the number formats used in the worksheet that includes the charted data. Mary Ann Richardson shows you a way to ...

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.

To create data bars in Excel, select your cells and then choose data bars from Conditional Formatting.

The default active cell format in Microsoft Excel isn't all that easy to see, but you can use this easy-to-implement code solution to change that.