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.

Writing Excel Formulas: Keep it Simple If you need to write a formula for a complex calculation, break it into small steps. There is no rule that says the result has to be calculated in one step so, ...

Excel’s formula bar has limitations that make writing, debugging, and managing complex formulas challenging. A new tool, the Advanced Formula Environment (AFE), developed by Microsoft for Excel ...