How Claude Is Rewiring Financial Analysis: From Excel Plug-ins to the Real-Time Data Revolution This analysis is based on public technical documentation and industry data. Some forward-looking statements reflect reasoned speculation about the pace and impact of AI in finance and are clearly marked as such. 1. It Starts with a Spreadsheet: Claude’s Ambition to Become Finance’s “Operating System” In October 2025, Anthropic announced a pivotal upgrade to its Claude for Financial Services suite—the beta release of Claude for Excel. This isn’t just a chatbot embedded in a spreadsheet; it’s a fundamental re-architecting of financial workflows. Imagine an analyst typing …