Writes a driver-based operating model as a real .xlsx workbook with live formulas, using only the Python standard library – an Inputs sheet seeded from the reconciled gates with the source of every seed (new customers and their growth for a stated number of months, ARPA, expansion, contraction and churn rates.
Writes a driver-based operating model as a real .xlsx workbook with live formulas, using only the Python standard library - an Inputs sheet seeded from the reconciled gates with the source of every seed (new customers and their growth for a stated number of months, ARPA, expansion, contraction and churn rates, COGS and fee percentages, payroll, opex, the contract's hiring plan and committed drivers), a Model sheet where every cell is a formula on the drivers, Actuals from the gates and a Checks sheet - and rebuilds it after each close while keeping the founder's edits. Use when someone asks "build our financial model in Excel", "make a driver-based model from our actuals", "give me a spreadsheet forecast with formulas", "update the model with this month's actuals", or after saas-unit-economics. Do NOT use for a three-statement model with balance sheet and tax (use an accountant, or the free fpa-model for guidance), for a model with no reconciled actuals (use wshobson-startup-financial-modeling or spreadsheet-model-builder), or for Google Sheets automation.This is the skill's description: the text your AI reads to decide when the skill applies.
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driver-model-xlsx/SKILL.md
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name: driver-model-xlsx
description: Writes a driver-based operating model as a real .xlsx workbook with live formulas, using only the Python standard library - an Inputs sheet seeded from the reconciled gates with the source of every seed (new customers and their growth for a stated number of months, ARPA, expansion, contraction and churn rates, COGS and fee percentages, payroll, opex, the contract's hiring plan and committed drivers), a Model sheet where every cell is a formula on the drivers, Actuals from the gates and a Checks sheet - and rebuilds it after each close while keeping the founder's edits. Use when someone asks "build our financial model in Excel", "make a driver-based model from our actuals", "give me a spreadsheet forecast with formulas", "update the model with this month's actuals", or after saas-unit-economics. Do NOT use for a three-statement model with balance sheet and tax (use an accountant, or the free fpa-model for guidance), for a model with no reconciled actuals (use wshobson-startup-financial-modeling or spreadsheet-model-builder), or for Google Sheets automation.
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