Scientifiques des données Use this skill when exploring, analyzing, or understanding Excel workbooks (.xlsx). This includes tasks where the user wants to: understand a workbook's structure (sheets, named ranges, data regions); read cell values or formulas from specific ranges, rows, or columns; trace how a formula is calculated by walking its dependency tree to leaf inputs; find what cells would be affected by changing an input; understand a financial model's logic (formula patterns, assumptions, cross-sheet references); detect anomalies like hardcoded overrides in formula rows; validate that a balance sheet balances; compare time-series data period-over-period; search across sheets for values or formula functions; or explore formatting patterns. Trigger when the user references an .xlsx file and wants to understand or analyze it — not modify it. Do NOT trigger when the user wants to create, write, or edit Excel files, generate charts/visualizations, or convert between formats.
2026-06-11