Microsoft continues its aggressive AI integration strategy, focusing on embedding AI agents and models across Microsoft 365 and Excel, which helped the stock trade slightly higher in pre-market hours. * CEO Satya Nadella described Excel as infrastructure for future autonomous AI agents and previewed the new Fairwater 2 AI datacenter design. * The company also detailed new Microsoft 365 Copilot, security, and pricing updates, emphasizing expanded AI and security capabilities for enterprise customers. * Microsoft stock is indicated at $483.60 in pre-market trading, up 0.09%.