In Excel or Power BI, Copilot lets users query structured data conversationally—”Which customers had the most tickets last month?” or “Show churn rate by product with a chart”—then retrieves results, generates visuals, and provides summaries or drill-downs based on the dataset. It grounds answers in your actual tables, respecting filters and relationships. This democratises analytics for non-technical staff, shortens time from question to insight, and uncovers trends that might otherwise require BI specialists or custom reports.