Create Repair And Recalculate Spreadsheet Workbooks Without Breaking Formulas

---
name: "Create, repair, and recalculate spreadsheet workbooks without breaking formulas"
slug: "create-repair-and-recalculate-spreadsheet-workbooks-without-breaking-formulas"
description: "Use the Anthropic xlsx skill when an agent needs to create, clean up, or modify .xlsx, .xlsm, .csv, or .tsv files as spreadsheet deliverables, not just inspect tabular data. It pushes the agent toward formula-safe edits, workbook validation, and recalculation instead of hardcoded outputs or one-off scripts."
verification: "security_reviewed"
source: "https://github.com/anthropics/skills/tree/main/skills/xlsx"
author: "Anthropic"
publisher_type: "official_repository"
category: "Data Extraction & Transformation"
framework: "Claude Agents"
---

# Create, repair, and recalculate spreadsheet workbooks without breaking formulas

Use the Anthropic xlsx skill when an agent needs to create, clean up, or modify .xlsx, .xlsm, .csv, or .tsv files as spreadsheet deliverables, not just inspect tabular data. It pushes the agent toward formula-safe edits, workbook validation, and recalculation instead of hardcoded outputs or one-off scripts.

## Prerequisites

pandas, openpyxl, LibreOffice

## Installation

Requirements and caveats from upstream:
- The frontmatter requires only two fields:

Basic usage or getting-started notes:
- Select document-skills or example-skills
- /plugin install example-skills@anthropic-agent-skills
- These example skills are all already available to paid plans in Claude.ai.

- Source: https://github.com/anthropics/skills/tree/main/skills/xlsx
- Extracted from upstream docs: https://raw.githubusercontent.com/anthropics/skills/HEAD/README.md

## Documentation

- https://github.com/anthropics/skills/tree/main/skills/xlsx

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/create-repair-and-recalculate-spreadsheet-workbooks-without-breaking-formulas/)