DCF Model Builder walks an agent through creating institutional-quality discounted cash flow valuation models in Excel following investment banking standards. It guides the modeler through a rigorous nine-step process spanning data retrieval and validation, historical analysis, revenue projections, operating expense modeling, free cash flow calculation, cost of capital research, discount rate application, terminal value computation, and enterprise-to-equity value bridging. The skill enforces live Excel formulas over hardcodes, structured scenario blocks, and precision sensitivity tables with verified center cells. Reach for it when you need to construct transparent, dynamic valuation workbooks that flex as underlying business assumptions change.