Reported by sourceNewBuild a formula-based analysis workbook with Agent Mode in ExcelAgent Mode in Excel plans formulas, sheets and charts from a prompt, checks and fixes its own results, and reports its validation steps; Microsoft reports 57.2% accuracy on SpreadsheetBench in its own evaluation.Microsoft 365 Copilotmicrosoft.com · 29 Sept 2025Save Build a formula-based analysis workbook with Agent Mode in ExcelShare Build a formula-based analysis workbook with Agent Mode in Excel