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excel_builder

Generate multi-sheet .xlsx files and convert worksheets into Markdown tables.

9|1|Updated Mar 18, 2026
Search Tags:#reporting#excel#xlsx#multi-sheet#markdown tables#data formatting#workspace files
One-click install
npx skills add https://github.com/flaz78/9Lives --skill excel-builder
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: excel_builder
Source: https://github.com/flaz78/9Lives/tree/main/workspace/skills/excel_builder
Command: npx skills add https://github.com/flaz78/9Lives --skill excel-builder

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill removes the manual effort of building multi-sheet Excel files and converting spreadsheet contents into readable Markdown tables.

Core Features & Use Cases

  • Create formatted .xlsx files: Build one or more sheets with bold headers, fixed column widths, and string-based cell values.
  • Read existing spreadsheets as Markdown: Convert each selected worksheet into a Markdown table, limited to a configurable maximum number of rows.
  • Use Case: Generate a weekly sales report workbook with multiple sheets (e.g., “Vendite”, “Rimborsi”), then read back the produced file to verify and paste the tables into a report.

Quick Start

Create an Excel workbook at /app/workspace/sales.xlsx with sheets named Vendite and Rimborsi, including headers and rows provided in your request.

Frequently Asked Questions about excel_builder

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

FAQPage Schema
How do I create a multi-sheet Excel file from Markdown table data?▼

To create multi-sheet Excel files, provide sheet names, headers, and row values in your request and the Skill generates a .xlsx workbook with bold headers and fixed column widths at a specified workspace path.

Can I convert Excel worksheets into Markdown tables for reporting?▼

Yes, you can convert Excel worksheets into Markdown tables by reading an existing .xlsx file and exporting each selected sheet as a Markdown table with a configurable maximum row limit for downstream communication.

What format do cell values need to be in when building an .xlsx file?▼

Cell values must be provided as strings when building an .xlsx file. The Skill treats all row values as strings and applies them directly to the generated worksheets alongside bold headers and column width specifications.

Do I need to specify an output path when generating Excel spreadsheets?▼

Yes, generating Excel spreadsheets requires an absolute output path under /app/workspace with a .xlsx extension. This ensures the generated workbook is saved correctly within the workspace environment.

What's the best way to automate weekly report generation into an Excel workbook?▼

Automate weekly report generation by providing headers and rows for each sheet, such as sales and refunds, in a single request to produce a formatted multi-sheet .xlsx file with bold headers and fixed column widths.

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