xlsx

Create, edit, and convert xlsx, xlsm, csv, and tsv spreadsheet files.

839|277|Updated Apr 4, 2026
One-click install
npx skills add https://github.com/matevip/mateclaw --skill xlsx-matevip
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: xlsx
Source: https://github.com/matevip/mateclaw/tree/main/mateclaw-server/src/main/resources/skills/xlsx
Command: npx skills add https://github.com/matevip/mateclaw --skill xlsx-matevip

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill enables teams and individuals to manage spreadsheet-centric workflows by opening, reading, editing, fixing, and converting .xlsx, .xlsm, .csv, and .tsv files, delivering ready-to-use spreadsheet deliverables.

Core Features & Use Cases

  • Create new spreadsheets from scratch or from other data sources (CSV, JSON) while preserving templates
  • Open and modify existing spreadsheets (.xlsx, .xlsm, .csv, .tsv) with careful handling to avoid breaking formulas
  • Convert between tabular formats (Excel, CSV, TSV) and perform data cleaning or restructuring to deliver consistent data

Quick Start

Provide your input data file and specify the desired spreadsheet format to generate a clean, production-ready Excel workbook

Frequently Asked Questions about xlsx

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

FAQPage Schema
How do I convert CSV to xlsx without breaking spreadsheet templates?

Converting CSV to xlsx without breaking templates involves reading CSV input, restructuring the tabular data, and generating a polished Excel workbook while preserving existing template structures to avoid formatting errors.

Can I edit existing xlsm files while preserving formulas?

Yes, you can edit existing xlsm files while preserving formulas. The skill opens and modifies .xlsx, .xlsm, .csv, and .tsv files with careful handling to avoid breaking formulas during data wrangling workflows.

What is the best way to clean and restructure tabular data in Excel?

Cleaning and restructuring tabular data in Excel is best handled by automated data processing workflows that open your file, fix structural inconsistencies, and output a ready-to-use spreadsheet deliverable.

Does this spreadsheet conversion tool support tsv files?

Yes, this spreadsheet conversion tool supports tsv files. It handles opening, reading, editing, and converting across xlsx, xlsm, csv, and tsv formats to deliver consistent, production-ready tabular data.

How do I create an Excel workbook from JSON data?

To create an Excel workbook from JSON data, provide your JSON input as a data source, specify the desired spreadsheet format, and the skill will generate a clean, production-ready xlsx file from scratch.

Why does my spreadsheet conversion break formatting?

Spreadsheet conversion breaks formatting when data wrangling lacks template preservation. This skill avoids common errors by carefully handling existing spreadsheets, applying data cleaning, and preserving templates during format conversion.