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, formatting, charting, cleaning messy data); create a new spreadsheet from scratch or from other data sources; or convert between tabular file formats. Trigger especially when the user references a spreadsheet file by name or path — even casually (like…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# XLSX creation, editing, and analysis
| Task | Approach |
|---|---|
| **Create** or **edit** with formulas/formatting | `openpyxl` — see gotchas below |
| **Bulk data** in or out | `pandas` (`read_excel`, `to_excel`) |
| **Quick look** at a sheet | `markitdown file.xlsx` — `## SheetName` per sheet; reads `.xlsm` too. No cell coordinates, so don't plan edits from it |
| **Read** a model (formulas *and* values) | two `load_workbook` passes — see gotchas |
> `openpyxl`, `pandas`, and `markitdown` are preinstalled — do not run `pip install` first; write the script and import directly. Only if an import fails (or the `markitdown` command is missing): `pip install` the missing package.
> Script paths below are relative to this skill's directory.
## Requirements for every output
- **Professional font** (Arial, Times New Roman) throughout, unless the user says otherwise.
- **Zero formula errors.** Never ship while `recalc.py` reports `errors_found`. If you think an error predates you, prove it: load the *original* with `data_only=True` and look at that cell. An error you introduced looks exactly like one you inherited.
…
The line at the top of this page pins the label git:20260829.3fe0b55, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
GET https://markdownregistry.com/api/v1/artifacts/art_tfw4g6jsf3img3l3
GET https://markdownregistry.com/api/v1/resolve?ref=ethanyoq/skill-hub/xlsx
GET https://markdownregistry.com/api/v1/blob/6712b39718fe815054abca9c3ee72f989613e6f771c8a5c58f30a65a6c905622
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
ethanyoq/skill-hub · archives/user-installed-skills/aact-bulk-trials/e07736f27453c7b6/aact-bulk-trials/SKILL.md · 使用 AACT (Aggregate Analysis of ClinicalTrials.gov) PostgreSQL 数据仓库进行批量、历史、聚合性临床试验数据挖掘。Use this skill when the user…
ethanyoq/skill-hub · archives/user-installed-skills/adaptive-quality-gate/b5189ce6c1bdba9b/adaptive-quality-gate/SKILL.md · Use when work produces a deliverable, factual claim, dataset, code change, decision, publication, deployment…
ethanyoq/skill-hub · archives/user-installed-skills/add-changeset/eca9273317fbdf81/add-changeset/SKILL.md · Create a changeset file in .changeset/ that describes a user-facing change for the release notes
ethanyoq/skill-hub · archives/user-installed-skills/add-competitor/72939df8cfcf87bc/add-competitor/SKILL.md · Add a new competitor to the AI Visibility Tool Directory — researches the tool, generates data, takes a screenshot, and…
ethanyoq/skill-hub · archives/user-installed-skills/add-lang/00700e7d79525f4e/add-lang/SKILL.md · Add tree-sitter language support to codegraph end-to-end — wire the grammar + extractor, write tests, then benchmark…
ethanyoq/skill-hub · archives/user-installed-skills/aesthetic/a4c80565d9241341/aesthetic/SKILL.md · Create aesthetically beautiful interfaces following proven design principles. Use when building UI/UX, analyzing…
ethanyoq/skill-hub · archives/user-installed-skills/agent-eval/61ca5bbbd5c736b7/agent-eval/SKILL.md · Benchmark CodeGraph retrieval quality on a real codebase by comparing agent behavior with vs without CodeGraph. Use…
ethanyoq/skill-hub · archives/user-installed-skills/agent-reach/330e35da8cf10b5e/agent-reach/SKILL.md · MUST USE when user wants to 调研/research/搜索/search/查/找/look up anything on the internet — e.g. 全网调研 X / 帮我调研一下 X / 查一下 X…
ethanyoq/skill-hub · archives/user-installed-skills/agent-reach/81c9cf0fc08ce044/agent-reach/SKILL.md · MUST USE when user wants to 调研/research/搜索/search/查/找/look up anything on the internet — e.g. 全网调研 X / 帮我调研一下 X / 查一下 X…
anthropics/skills · skills/xlsx/SKILL.md · Use this skill any time a spreadsheet file is the primary input or output. This means any task where the user wants to…
eigent-ai/eigent · resources/example-skills/xlsx/SKILL.md · Use this skill any time a spreadsheet file is the primary input or output. This means any task where the user wants to…
thinkinaixyz/deepchat · resources/skills/xlsx/SKILL.md · Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and…
davepoon/buildwithclaude · plugins/all-skills/skills/xlsx/SKILL.md · Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and…
ginlix-ai/langalpha · plugins/langalpha_deliverables/skills/xlsx/SKILL.md · Excel workbooks with live formulas: build or edit .xlsx models with openpyxl, recalculate with IronCalc or LibreOffice…
fcakyon/claude-codex-settings · plugins/anthropic-office-skills/skills/xlsx/SKILL.md · Use this skill any time a spreadsheet file is the primary input or output. This means any task where the user wants to…