The big headlines on this release are efficiency, with OpenAI reporting that GPT-5.4 uses far fewer tokens (47% fewer on some tasks) than its predecessors).

To fix the Excel error, There's a problem with this formula in Windows, check for unmatched or missing parentheses & ensure the function syntax is correct dirst.

Excel table formulas shift from cell positions to named columns with #All-style tags, keeping calculations readable when layouts change.

Prevent broken formulas using tables, validation rules, separate worksheets, named variables, and the power of LAMBDA.

Overview:Excel books support long-term learning compared to short tutorials that explain quick data-centric tasks.Books ...

OpenAI is bringing ChatGPT directly into spreadsheets. The new Excel add-in lets users analyse data, build models and run scenarios using simple prompts, with Google Sheets support expected soon.

Excel automations cover auto-updating charts, deadline flags, and smart links; Ctrl+T table charts expand as new rows appear.

Protect your data integrity by using Excel formulas to "lock" checkboxes so they only tick when specific conditions are met.

Long reserved for advanced offerings, Claude in Excel is now becoming accessible to subscribers of Anthropic’s Pro plan, ...

OpenAI released GPT-5.4 in ChatGPT (as GPT-5.4 Thinking), the API, and Codex, calling it its most capable and efficient ...

Microsoft removes Excel Copilot App Skills and merges features into Copilot Chat and Agent Mode as part of a broader AI ...

WACC is important for both investors and companies ...