An Excel spreadsheet can become an indispensable tool for your business when you harness its power for keeping records and doing computations. Take advantage of the program's seemingly limitless ...

Welcome to TNW Basics, a collection of tips, guides, and advice on how to easily get the most out of your gadgets, apps, and other stuff. There are a lot of ways to calculate the number of days ...

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. Robert Kelly is managing director of XTS Energy LLC ...