Calculating sales tax on prices is something you don't have to worry about if you use Excel. You can add a formula to the spreadsheet you use for invoices, bills of sale or quotes, and that's the end ...

Many of them are backward- and forward-compatible, but check the system requirements before you download anything. Note that newer isn’t always better: Many of the ...

We all can admit that Microsoft Excel is the best tool in its class, but there are ways to improve it with some cool and free Excel add-ins from the store. Some of these add-ins do basic things, while ...

Messy Excel formulas are more than just an eyesore—they're harder to maintain. Every repeated cell reference and tangled ...

Life is hectic, and juggling dozens of apps for the "must-do" chores adds to the noise. Since I already work in Excel daily, ...

While Microsoft Excel is one of the most powerful spreadsheet applications, it’s also the most intimidating tool in the Microsoft Office suite. If you’ve never used Excel before or are just a bit ...

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 ...