Most spreadsheet problems come from static cell ranges—Excel tables replace them with dynamic, self-managing data structures.

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 ...

Learn essential date functions in Excel from beginner to pro in this tutorial. You'll discover how to calculate the number of ...

Creating a running total (or a cumulative sum, as it is known in Excel) is easy once you get the hang of it. Many business owners use cumulative sums to track expenses, revenue, employee hours and ...

Have you ever stared at a spreadsheet, struggling to make sense of percentage calculations that just don’t seem to add up? Whether it’s a confusing formula, a misstep with zero values, or an ...

Have you ever been frustrated by Excel treating blank cells as zeros? It’s a small quirk, but one that can wreak havoc on your data analysis. Whether you’re building financial models, tracking ...

Charts and sparklines are powerful data visualization tools in Excel. Here’s a guide to the most popular chart types in Excel and how to best use them. Microsoft Excel offers a plethora of tools for ...

When you edit the values on your Microsoft Excel worksheet, pressing the "F9" button refreshes the calculation manually. To avoid the tedious task of repetitively pressing this button and risking an ...

If you are using Microsoft Excel to manage numerical data, at some point you're inevitably going to display percentages. Doing so can give you a new insight, or make summarizing heaps of data a bit ...