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

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

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.

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).

OpenAI has released its Codex desktop app for Windows, adding a native sandbox and PowerShell support, enabling developers to ...