OpenAI integrates Excel support and live financial data into ChatGPT, creating a powerful spreadsheet co-pilot for traders, analysts, and crypto investors.

Dark Mode has its drawbacks. For example, the worksheet grid usually remains white. You can choose Black under Office Theme, which activates a Dark Mode toggle in the View tab of your Excel ribbon.

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).

ChatGPT is now using its 5.4 Thinking model for deeper reasoning, and it's even better at handling "professional work." ...

Many engineering challenges come down to the same headache—too many knobs to turn and too few chances to test them. Whether tuning a power grid or designing a safer vehicle, each evaluation can be ...

Discover how to conduct break-even analysis in Excel using Goal Seek and spreadsheet examples, helping you assess ...