Anthropic Now Makes Its Own Spreadsheet Software. Here's What I'd Do With Microsoft Stock.

Key points

• Claude Sheets supports multi-tab spreadsheets, formulas, formatting, and drop-down menus, with real-time cell updates driven by prompts and collaborative editing among teammates.
• The features are framed as a cautious beta, with recommendations to export files to .xlsx or CSV or to use Claude for Excel when needed, indicating current limitations in full Excel parity.
• Anthropic launched the new tools for Teams plans by default while keeping Enterprise customers’ defaults off, signaling a staged rollout and potential feature adjustments over time.
• Microsoft 365 remains a dominant driver of Microsoft’s revenue and profitability, with the productivity segment historically contributing the majority of operating income and the cloud segment continuing rapid growth.
• In the fiscal first quarter of 2027, Microsoft 365 cloud revenue rose 17% year over year to $27.8 billion, and paid seats growth slowed modestly, suggesting monetization is increasingly driven by price and plan upgrades.
• Industry attention on Claude Sheets centers on whether new AI-enabled spreadsheets can attract users away from Excel, with analysts noting seat growth as a key early indicator of competitive impact.
• The broader stock context shows Microsoft trading around $533 per share with a high earnings multiple, while The Motley Fool positions Microsoft as a long-standing holding, underscoring mixed investor signals about near-term disruption from AI-native tools.