excel-author

Generate auditable Excel financial workbooks with formula-based calculations using openpyxl.

Updated Jun 17, 2026
One-click install
npx skills add https://github.com/cxnaive/hermes-agent-llbot --skill excel-author-cxnaive
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: excel-author
Source: https://github.com/cxnaive/hermes-agent-llbot/tree/main/optional-skills/finance/excel-author
Command: npx skills add https://github.com/cxnaive/hermes-agent-llbot --skill excel-author-cxnaive

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires openpyxl, and includes scripts (resource) components.

What problem does it solve?

This skill solves the issue of opaque, error-prone financial modeling by enforcing strict, banker-grade conventions for headless Excel workbook generation.

Core Features & Use Cases

  • Auditable Structure: Enforces color-coded cell standards (blue for inputs, black for formulas, green for links) to ensure transparency.
  • Automated Integrity: Includes built-in balance checks and sensitivity table generation to prevent silent calculation errors.
  • Use Case: Use this to generate a complex DCF or LBO model where every assumption is documented with comments and every calculation is a formula, ensuring the model is reviewable by third parties.

Quick Start

Use the excel-author skill to generate a new financial model workbook with a DCF tab and a balance check tab based on the provided revenue assumptions.

Frequently Asked Questions about excel-author

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I generate auditable financial models in Excel using openpyxl?

Generating auditable financial models involves using openpyxl to build workbooks with strict color-coded conventions (blue inputs, black formulas, green links) and automated balance checks, ensuring all calculations remain transparent and reviewable by third parties.

What is the best way to build a DCF or LBO model with formula-based calculations?

Building a DCF or LBO model with formula-based calculations is best achieved by enforcing banker-grade conventions that document every assumption with comments and use formulas for every calculation, preventing silent errors and maintaining professional model integrity.

Can I automate balance verification and sensitivity tables for spreadsheet modeling?

You can automate balance verification and sensitivity table generation during spreadsheet modeling by applying this skill, which includes built-in checks to prevent silent calculation errors and supports professional analysis for complex financial structures.

Does openpyxl support strict cell-styling conventions for professional finance workbooks?

Openpyxl supports strict cell-styling conventions for professional finance workbooks by allowing programmatic enforcement of color-coded standards for inputs, formulas, and links, which ensures model transparency and facilitates third-party review.

Why does headless Excel generation prevent opaque and error-prone financial modeling?

Headless Excel generation prevents opaque and error-prone financial modeling by enforcing strict, banker-grade conventions programmatically, ensuring every calculation is a formula and every assumption is documented, which eliminates manual formatting errors and silent calculation discrepancies.