xlsx

Open, read, edit, and convert .xlsx, .xlsm, .csv, and .tsv spreadsheet files.

23|11|Updated Feb 12, 2026
One-click install
npx skills add https://github.com/miolamio/cc-for-non-coders-dev-container --skill xlsx-miolamio
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: xlsx
Source: https://github.com/miolamio/cc-for-non-coders-dev-container/tree/main/skills/xlsx
Command: npx skills add https://github.com/miolamio/cc-for-non-coders-dev-container --skill xlsx-miolamio

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Use this skill any time a spreadsheet file is the primary input or output. This means any task where the user wants to: open, read, edit, or fix an existing .xlsx, .xlsm, .csv, or .tsv file (e.g., adding columns, computing formulas, formatting, charting, cleaning messy data); the deliverable must be a spreadsheet file. Do NOT trigger when the primary deliverable is a Word document, HTML report, standalone Python script, database pipeline, or Google Sheets API integration, even if tabular data is involved.

Core Features & Use Cases

  • Open, read, and edit spreadsheet files across .xlsx, .xlsm, .csv, and .tsv formats.
  • Apply data cleaning, formatting, formula updates, and simple transformations; convert between tabular formats; generate charts or summaries when needed.

Quick Start

Open a sample data.xlsx and let the skill produce a cleaned, formatted spreadsheet ready for analysis.

Frequently Asked Questions about xlsx

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

FAQPage Schema
How do I automate data cleaning and formatting across multiple spreadsheet files?

Automate spreadsheet processing by applying data cleaning, formula updates, and formatting transformations across .xlsx, .xlsm, .csv, and .tsv files to produce analysis-ready outputs.

What is the best way to convert CSV or TSV files into formatted Excel files?

Convert CSV or TSV files into formatted Excel files by reading the tabular data and applying necessary formatting, formula updates, and simple transformations to output a structured .xlsx spreadsheet.

Can I edit existing .xlsx or .xlsm files to add columns and compute formulas?

Edit existing .xlsx and .xlsm files by opening, reading, and updating them to add columns, compute formulas, apply formatting, and generate charts or summaries as needed.

Does spreadsheet automation work for generating charts and summaries from tabular data?

Spreadsheet automation works for generating charts and summaries from tabular data by processing input files and applying transformations to produce visual and analytical outputs within the spreadsheet.

When should I not use spreadsheet automation for tabular data tasks?

Avoid spreadsheet automation when the primary deliverable is a Word document, HTML report, standalone Python script, database pipeline, or Google Sheets API integration, even if tabular data is involved.

Do I need a specific spreadsheet format to start automating data transformations?

Provide an existing .xlsx, .xlsm, .csv, or .tsv file as the primary input to start automating data transformations, cleaning, and formatting tasks for spreadsheet deliverables.