xlsx
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, .xltx, .csv, or .tsv file (e.g., adding columns, computing formulas,
- License
- See LICENSE.txt in skill folder
- SKILL.md tokens
- 2,135
- Bundled files
- 52
- Bundled tokens (estimated)
- 273,573
Cost per 1,000 loads
Estimated input cost per 1,000 loads of SKILL.md only (characters ÷ 4). Bundled files, output tokens and execution are excluded.
| Model | Input / 1M tokens | 1,000 loads |
|---|---|---|
| Claude Opus 5 | $5.00 | $10.68 |
| Claude Sonnet 5 | $2.00 | $4.27 |
| Claude Haiku 4.5 | $1.00 | $2.13 |
Safety flags
Detected automatically from files; not a security audit.
- Runs scripts
- Yes
- Network access
- No
- Shell commands
- Yes
Works with
Open SKILL.md format
- Claude Code
- Codex
- Cursor
- GitHub Copilot
- Gemini CLI
- OpenCode
- Goose
Install
npx skills add anthropics/skills --skill xlsxLast verified:
xlsx FAQ
What does the xlsx skill do?
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, .xltx, .csv, or .tsv file (e.g., adding columns, computing formulas, Source: https://github.com/anthropics/skills/blob/main/skills/xlsx/SKILL.md
What does the xlsx skill cost to load?
SKILL.md is about 2,135 tokens. Estimated input cost per 1,000 loads: Claude Opus 5 $10.68; Claude Sonnet 5 $4.27; Claude Haiku 4.5 $2.13. Estimated input cost per 1,000 loads of SKILL.md only (characters ÷ 4). Bundled files, output tokens and execution are excluded. Prices: https://docs.anthropic.com/en/docs/about-claude/pricing
How do I install the xlsx skill?
Skills CLI: npx skills add anthropics/skills --skill xlsx. Claude Code: /plugin marketplace add anthropics/skills, then install the plugin from that marketplace. Download the xlsx skill folder as a ZIP and upload it in Claude.ai skills settings.
Is the xlsx skill safe?
Automatically detected flags: runs scripts, shell commands. Flags are detected automatically from the skill's files and are not a security audit; review the SKILL.md before installing.