xlsx

Create, edit, format, and clean .xlsx, .xlsm, .csv, and .tsv spreadsheet files.

114|31|Updated Mar 23, 2026
One-click install
npx skills add https://github.com/SeifBenayed/cloclo --skill xlsx-seifbenayed
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: xlsx
Source: https://github.com/SeifBenayed/cloclo/tree/main/.claude/skills/xlsx
Command: npx skills add https://github.com/SeifBenayed/cloclo --skill xlsx-seifbenayed

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill eliminates the tedious, error-prone manual work of creating, editing, formatting, and cleaning spreadsheet files, saving you hours of repetitive effort and reducing costly formula and data entry errors.

Core Features & Use Cases

  • Full Spreadsheet Lifecycle Support: Create new spreadsheets from scratch or external data sources, edit existing .xlsx/.xlsm/.csv/.tsv files, and clean messy tabular data with malformed rows, misplaced headers, or junk entries.
  • Financial Modeling & Validation: Enforce industry-standard color coding, number formatting, and formula best practices to build professional, error-free financial models.
  • Use Case: Imagine you have a messy quarterly sales CSV with broken headers and duplicate rows. Use this Skill to clean the data, structure it into a properly formatted spreadsheet, and add validated calculated columns for total revenue.

Quick Start

Use the xlsx skill to clean the messy quarterly sales data file 'q3_sales.csv' and output a formatted, error-free spreadsheet with calculated total revenue columns.

Frequently Asked Questions about xlsx

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

FAQPage Schema
How do I clean messy CSV files with broken headers and duplicate rows?

Yes, spreadsheet automation can validate formulas and enforce industry-standard formatting conventions for financial modeling. It applies professional color coding, number formatting, and zero-error formula validation rules to deliver error-free financial spreadsheet deliverables.

Can I use spreadsheet automation to convert CSV and TSV files into formatted XLSX files?

Yes, spreadsheet automation supports cross-format conversion for .csv and .tsv files into formatted .xlsx and .xlsm files. It preserves templates and applies industry-standard formatting conventions during the conversion process to ensure production-ready outputs.

What is the best way to automate adding calculated columns to existing tabular data?

The best way to automate adding calculated columns is using spreadsheet automation to edit existing tabular data and apply validated formulas. It enforces zero-error formula validation to ensure calculated columns like total revenue compute accurately without manual intervention.

Does spreadsheet automation work with XLSM files or only standard XLSX formats?

Spreadsheet automation works with both .xlsm and standard .xlsx formats, alongside .csv and .tsv files. It handles the full spreadsheet lifecycle, allowing you to edit existing files across these formats while preserving template structures and formatting conventions.

Why do my spreadsheet formulas keep breaking when I restructure tabular data?

Spreadsheet formulas break during manual tabular data restructuring due to misaligned cell references and formatting inconsistencies. Automating this process enforces zero-error formula validation and template preservation rules, preventing costly errors when reorganizing rows, columns, and headers.