OpenAI launches ChatGPT for Excel powered by GPT-5.4, enabling users to build, update, and analyze spreadsheet models using plain language.

Excel users are warned to update now, as a critical vulnerability has been confirmed that can lead to “zero-click information disclosure” via Copilot AI Agent.

Use dynamic arrays and tables for fast, scalable cascading drop-down lists in modern Excel.

Excel's basic formulas work fine for simple calculations, but they quickly become cumbersome when you're dealing with complex data analysis. You end up with nested functions that are hard to read, ...

Macworld reports macOS 26 Tahoe launched September 15, 2025, featuring the biggest design overhaul since 2013 with a new “Liquid Glass” interface that includes reflective, glossy elements. Version ...