ChatGPT 5.4 is a big spreadsheet fan — and comes with special Excel & Google Sheets tools

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

OpenAI launches GPT-5.4 with native computer use mode, financial plugins for Microsoft Excel, Google Sheets

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).

Extract Hyperlink Addresses in Excel with VBA or Office Scripts

Office Scripts extract Excel hyperlink URLs without macros; results are hardcoded so the file can stay .xlsx, reuse is straightforward.
GitHub

Nordnet nExt API Javascript client

Isomorphic JS client for Nordnet nExt API. Client can be used both on the client and server side. Client should be used for making HTTP requests towards nExt API. See nExt API documentation for a list ...
Investopedia

Calculate IRR in Excel: Step-by-Step Guide for Investors

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. David Kindness is a Certified Public Accountant ...
GitHub

Onspring API Javascript SDK

The Javascript SDK for the Onspring API is meant to simplify development in Javascript for Onspring customers who want to build integrations with their Onspring instance. Note: This is an unofficial ...