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.

Is it frustrating that the leading zeros are automatically removed from your Excel workbook? Excel typically removes the leading zeros before a number as you input the number in a cell.

In Excel, custom input or error messages explain the rules for each field to prevent data-entry errors. Here's how to set them up in a spreadsheet.

There are lots of ways to return the top or bottom n records from a data set in Microsoft Excel, but the new dynamic array functions make doing so easier than ever.