Every number in the workbook is one of two things: a labelled blue input you can change, or a black formula that traces back to those inputs. Nothing is hard-coded. That discipline — one source of truth — is what makes a model auditable and safe to reuse: you edit the assumptions, never the engine.
The three statements are genuinely integrated. Net income flows to retained earnings; depreciation and working-capital movements flow through the cash-flow statement to the cash balance; capex and debt repayments update the balance sheet. A live BALANCE CHECK row proves Assets = Liabilities + Equity in every year — if it is ever non-zero you have a broken link, and the model tells you at once.
The DCF tab builds unlevered free cash flow straight from the statements, discounts it at WACC, adds a terminal value, and bridges enterprise value to equity value and a value per share — with terminal value shown as a percentage of enterprise value so you can sanity-check how much of the answer the terminal assumption is carrying. To learn to build this from a blank sheet, take the Financial Modelling course; to value a company interactively in your browser, use the free DCF model tool.