xlsx

xlsx: What this skill does

xlsx is a reusable agent skill listed on skills.sh under anthropics/skills. skills.sh rank #138, installs 78.0K, GitHub stars 140.2K, first seen Jan 19, 2026.

Create, edit, and analyze Excel spreadsheets with formulas, formatting, and error-free calculations. Supports reading, creating, and modifying .xlsx, .xlsm, .csv, and .tsv files using pandas for data analysis and openpyxl for formulas and formatting Automatically recalculates all formulas and scans for Excel errors (#REF!, #DIV/0!, #VALUE!, #N/A, #NAME?) using LibreOffice integration Enforces industry-standard color coding and number formatting for financial models (blue for inputs, black for formulas, green for internal links, red for external links) Includes comprehensive documentation requirements for hardcoded values and assumption-based formula construction to maintain dynamic, updateable spreadsheets

When to use it

• Use this skill when the task matches the package name, repository context, or skills.sh topic: xlsx.
• Prefer it when a repeatable workflow is better than a one-off prompt: setup, review, design, deployment, automation, research, media generation, or operational checks.
• For production work, read the linked repository and install command before allowing the agent to run scripts or modify files.

How an agent should use it

1. Confirm the user intent and whether this skill is the right fit.
2. Install or inspect the skill with the official command from skills.sh.
3. Read the local SKILL.md and only load extra files referenced by that skill.
4. Follow the skill's workflow, then verify the result with tests, screenshots, audits, or source-backed checks as appropriate.
5. Record any constraints, missing credentials, tool permissions, or security warnings before handoff.

Quality and safety checks

• Check repository ownership and source reputation: anthropics/skills.
• Review security audit signals before installing; skills.sh reports: Gen Agent Trust Hub Pass Socket Pass Snyk Pass.
• Never grant broad shell, browser, cloud, or deployment permissions without user approval.
• Treat generated output as draft until validated by the skill's own acceptance criteria.
• If the skill touches cloud resources, costs, credentials, customer data, or production deploys, require a human review step.

Sources and install

• skills.sh page: https://www.skills.sh/anthropics/skills/xlsx
• Repository: https://github.com/anthropics/skills
• Install command: npx skills add https://github.com/anthropics/skills --skill xlsx

FAQ

Is xlsx an agent, a prompt, or a skill?
It is a skill: a reusable package of task-specific instructions and supporting files that an agent can load when the user's request matches the workflow.

Should I install it automatically?
Only after checking the repository, install command, audit status, and whether the user wants this capability in the current agent environment.

What makes it useful for AIDreamHub users?
It helps users discover practical agent capabilities from the open skills ecosystem and compare them by task, source, install count, and operational risk.