(THE CONVERSATION) In late October 2025, as much as US$2 billion vanished from a digital marketplace. This wasn’t a hack or a bubble bursting. It happened because one company, Valve, changed the rules ...

Learn how to calculate payback and discounted payback in Excel with formulas, SCAN, XMATCH, LET, and SWITCH, plus ...

The good news is that Microsoft is giving people a way out of their subscriptions. Instead of paying monthly or yearly, now ...

Microsoft CEO Satya Nadella reminisced about his 1993 Excel presentation, expressing his continued love for the software ...