VLOOKUP has been the go-to function for looking up data in Excel for years, but it comes with limitations. You can only ...

Today is Microsoft' 2025 Patch Tuesday, which includes security updates for 172 flaws, including six zero-day vulnerabilities ...

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. David Kindness is a Certified Public Accountant ...

Ars Technica has been separating the signal from the noise for over 25 years. With our unique combination of technical savvy and wide-ranging interest in the technological arts and sciences, Ars is ...