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Agent skills for spreadsheets in Claude Code

537 agent skills for spreadsheets in the catalog list Claude Code as a supported host. These are the 15 that rank highest, ordered by adoption, freshness and documentation. xlsx, data-transformer and web-table lead the list. Claude Code reads them from .claude/skills/<name>/SKILL.md in the project, or ~/.claude/skills/<name>/ for every project. A skill is a folder with a SKILL.md file; Claude Code loads it when a task matches its description. Every listing links to its source and shows a freshness grade.

Updated Oct 26, 2026 · Built from catalog data; how we rank and grade

How to install in Claude Code

npx skills add <owner>/<repo> --skill <name> -a claude-code

Where it goes: .claude/skills/<name>/SKILL.md in the project, or ~/.claude/skills/<name>/ for every project.

The host's docs describe copying a folder with a SKILL.md into a skills directory; the npx skills command is a third-party shortcut for the same thing.

Each listing page has the exact command for that listing.

Top 15 of 537

  1. 1
    xlsx

    snykOfficial

    Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization.

    • Published by the vendor
    • Repository has 3.2K stars
    • Active in the last 30 days

    ★ 3.2KLast active Oct 20, 2026Claude Code, Claude apps, Codex, Cursor +6

  2. 2
    data-transformer

    alibaba

    Triggered when the user needs to convert data formats, such as CSV to JSON, JSON to YAML, or XML to JSON.

    • Repository has 1.3K stars
    • Active in the last 30 days
    • Open source (Apache-2.0)

    ★ 1.3KLast active Oct 20, 2026Claude Code, Claude apps, Codex, Cursor +6

  3. 3
    web-table

    Zafer-Liu

    把网页、JSON、CSV、PDF 链接里的表格抓取注册为可查询数据源（数据获取入口）

    • Repository has 2.6K stars
    • Active in the last 30 days

    ★ 2.6KLast active Oct 24, 2026Claude Code, Claude apps, Codex, Cursor +6

  4. 4
    convert-documents-to-markdown

    firecrawl

    Convert Word (.doc, .docx), PowerPoint (.ppt, .pptx), Excel (.xls, .xlsx), OpenDocument (.odt, .ods, .odp), RTF, EPUB, CSV, and PDF files to GitHub-Flavored…

    • Repository has 8.6K stars
    • Open source (MIT)

    ★ 8.6KLast active Sep 4, 2026Claude Code, Claude apps, Codex, Cursor +6

  5. 5
    firecrawl-parse

    firecrawlOfficial

    Convert a local file (PDF, DOCX, XLSX, HTML, …) to markdown, or answer questions about its content.

    • Published by the vendor
    • Active in the last 30 days

    ★ 664Last active Oct 22, 2026Claude Code, Claude apps, Codex, Cursor +6

  6. 6
    gog

    Bitterbot-AI

    Search, send, and draft Gmail messages, manage Google Calendar events, query Drive and Contacts, and read/write Google Sheets and Docs via the gog CLI.

    • Repository has 2.5K stars
    • Active in the last 30 days
    • Open source (MIT)

    ★ 2.5KLast active Oct 22, 2026Claude Code, Claude apps, Codex, Cursor +6

  7. 7
    import-excel

    zditor

    Use when users want to convert an Excel workbook into a Zditor SuperTag project with one markdown file per row, inferred field types, frontmatter, row and col…

    • Active in the last 30 days

    ★ 276Last active Oct 11, 2026Claude Code, Claude apps, Codex, Cursor +6

  8. 8
    xlsx

    spinabot

    Build and edit professional Excel (.xlsx) spreadsheets, workbooks, and simple financial models — live formulas, number/date/currency formats, cell styling…

    • Largest repository here (11,356 stars)
    • Open source (MIT)

    ★ 11.4KLast active Sep 15, 2026Claude Code, Claude apps, Codex, Cursor +6

  9. 9
    eval-import

    malloydata

    Turn a list of questions into an eval set, whatever shape it arrived in: a JSONL a customer sent, a CSV, a spreadsheet export, a markdown doc, an email…

    • Active in the last 30 days
    • Open source (MIT)
    • Ships helper scripts

    ★ 118Last active Oct 18, 2026Claude Code, Claude apps, Codex, Cursor +6

  10. 10
    clean-data

    Aperivue

    Use when a clinical CSV/Excel dataset needs profiling and cleaning before analysis (missing values, outliers, duplicates, type mismatches).

    • Active in the last 30 days
    • Open source (MIT)
    • Ships helper scripts

    ★ 349Last active Oct 4, 2026Claude Code, Claude apps, Codex, Cursor +6

  11. 11
    generate-codebook

    Aperivue

    Use when a tabular dataset (CSV, Excel, Parquet, Stata, SAS) needs a data dictionary.

    • Active in the last 30 days
    • Open source (MIT)
    • Ships helper scripts

    ★ 349Last active Oct 4, 2026Claude Code, Claude apps, Codex, Cursor +6

  12. 12
    plannotator-annotate

    backnotprop

    Open Plannotator's annotation UI for a markdown file, plain-text config file (.yaml, .json, .toml, .ini, .csv, .log, …), HTML file, URL, or folder and then…

    • Repository has 9.6K stars
    • Active in the last 30 days
    • Open source (Apache-2.0)

    ★ 9.6KLast active Oct 24, 2026Claude Code, Claude apps, Codex, Cursor +6

  13. 13
    csv-tools

    gebruder

    Parse and analyze CSV data

    • Active in the last 30 days
    • Open source (MIT)

    ★ 192Last active Oct 23, 2026Claude Code, Claude apps, Codex, Cursor +6

  14. 14
    xberg-extracting-tables

    xberg-io

    Use when extracting tabular data from PDFs, spreadsheets, or images.

    • Repository has 9.4K stars
    • Active in the last 30 days
    • Open source (MIT)

    ★ 9.4KLast active Oct 14, 2026Claude Code, Claude apps, Codex, Cursor +6

  15. 15
    elasticsearch-ingest

    elasticOfficial

    Load CSV and JSON files into Elasticsearch indices using the bulk API and explicit mappings when field types matter.

    • Published by the vendor
    • Open source (Apache-2.0)

    ★ 600Last active Sep 4, 2026Claude Code, Claude apps, Codex, Cursor +6

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