excel-author

Generate auditable Excel workbooks with openpyxl for financial modeling.

Updated Jul 13, 2026
One-click install
npx skills add https://github.com/zangjeicy/Hermes --skill excel-author-zangjeicy
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: excel-author
Source: https://github.com/zangjeicy/Hermes/tree/main/optional-skills/finance/excel-author
Command: npx skills add https://github.com/zangjeicy/Hermes --skill excel-author-zangjeicy

SYSTEM DOCUMENTATION & REQUIREMENTS

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

What problem does it solve?

This skill solves the issue of inconsistent, non-auditable, and error-prone financial modeling by enforcing strict banker-grade conventions for Excel workbook creation.

Core Features & Use Cases

  • Standardized Formatting: Automatically applies color-coded cell conventions (blue for inputs, black for formulas, green for links) to ensure transparency.
  • Auditability: Enforces the use of formulas over hardcoded values and requires cell comments for all inputs to track data sources.
  • Use Case: Use this to generate complex financial models like DCFs, LBOs, or 3-statement models where accuracy and reviewability are critical for stakeholders.

Quick Start

Use the excel-author skill to generate a new financial model workbook with a DCF projection and a balance check tab.

Frequently Asked Questions about excel-author

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

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

You can build auditable Excel financial models using openpyxl by enforcing banker-grade conventions that apply color-coded inputs, require formulas over hardcoded values, and mandate cell comments to track data sources for professional review.

What's the best way to generate a DCF projection in Excel with balance checks?

The best way to generate a DCF projection with balance checks is to use a skill that creates formula-based schedules, automates standardized formatting for transparency, and builds dedicated balance check tabs to ensure calculation accuracy for stakeholders.

Does this Excel modeling approach support complex financial schedules and sensitivity tables?

Yes, this Excel modeling approach supports complex financial schedules and sensitivity tables by using openpyxl to construct formula-based calculations that enforce professional audit requirements and maintain strict modeling standards.

Do I need openpyxl and LibreOffice to create professional financial spreadsheets?

Yes, you need openpyxl for workbook construction and LibreOffice for headless formula recalculation to successfully create professional financial spreadsheets that meet strict auditability and formatting requirements.

Why use standardized formatting conventions when creating auditable Excel workbooks?

You use standardized formatting conventions when creating auditable Excel workbooks to guarantee transparency, automatically applying color-coded cells like blue for inputs, black for formulas, and green for links to prevent inconsistent and error-prone modeling.

Can I create a 3-statement financial model in Excel without hardcoding values?

Yes, you can create a 3-statement financial model without hardcoding values by enforcing strict auditability rules that require formula-based calculations and cell comments for all inputs to track data sources accurately.