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Document Processing
XLSX Master skill
Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, pivot tables, charts, and visualization.
Why it matters
35k+ downloads. The highest-rated document skill (4.8/5 with 3,100 reviews). Financial modeling, data analysis, and reporting in a single skill.
How to install XLSX Master
- With the skills CLI. One command copies the skill into your project:
npx skills add anthropics/skills --skill xlsx - In Claude Code, by hand. Copy the
xlsxfolder from the repository into.claude/skills/in your project, or into~/.claude/skills/to use it everywhere. - In AGNT. Download AGNT free, then add the skill folder from Skills → Import. It runs with the model you choose, next to your agents, workflows and memory.
Source and maintenance
| Repository | anthropics/skills |
| Skill folder | xlsx |
| GitHub stars (13 November 2026) | 194,032 |
| Last commit | 6 Nov 2026 |
| Category | Document Processing |
| Ranked | #35 in The 100 Best AI Agent Skills in 2027 |
Checked against GitHub on 13 November 2026.
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