When you use Excel, you have access to powerful tools that can help you make informed decisions based on different scenarios. Two of the most useful tools for this purpose are Goal Seek and the ...

How to force a consistent phone number format in Microsoft Excel Your email has been sent Combine an Excel custom format with data validation and remove the pressure ...

Whole-column references in Excel are silent performance killers, often forcing the program to manage a range of over a ...

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. Return on investment (ROI) measures the amount of ...