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Agent skill

XLSX

by einverne in einverne/dotfiles

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

ProprietaryAuto-check passedDocuments & Office

Install XLSX

skills CLI
$ npx skills add einverne/dotfiles --skill xlsx -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install einverne/dotfiles xlsx --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/einverne/dotfiles.git skills-src && mkdir -p .claude/skills && cp -r skills-src/claude/skills/document-skills/xlsx .claude/skills/xlsx && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
xlsx
GitHub stars
121
Used in
39 other repos
Token cost
~2.7k tokens
SKILL.md length
947 words
Files
3
Skills in repo
39
Repo updated
First seen
Licence
Proprietary

At a glance

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

  • Works in 6 steps: Choose tool: pandas for data, openpyxl… → Create/Load: Create new workbook or load… → Modify: Add/edit data, formulas, and… → …
  • Tasks that involve Excel spreadsheets
  • SKILL.md covers All Excel files, Financial models, Overview and Important Requirements, plus 7 more sections
  • Runs Python scripts from its folder; calls python

What it does

XLSX is an agent skill from einverne/dotfiles. Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv, etc) for: (1) Creating new spreadsheets with formulas and formatting, (2) Reading or analyzing data, (3) Modify existing spreadsheets while preserving formulas, (4) Data analysis and visualization in spreadsheets, or (5) Recalculating formulas

Its SKILL.md is about 2.7k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `recalc.py`).

It sits in Documents & Office, covering Excel spreadsheets and Data analysis. It works with Microsoft Excel. The repository describes itself as: my personal dotfiles managed by dotbot, zinit.

When your agent uses it

  • Tasks that involve Excel spreadsheets
  • Tasks that involve Data analysis

Example prompts

  • “/xlsx”

Requirements

  • Python 3

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. Choose tool: pandas for data, openpyxl for formulas/formatting
  2. Create/Load: Create new workbook or load existing file
  3. Modify: Add/edit data, formulas, and formatting
  4. Save: Write to file
  5. Recalculate formulas (MANDATORY IF USING FORMULAS): Use the recalc.py script
  6. Verify and fix any errors

What it can do on your machine

Read from SKILL.md and the folder at commit c6c0686. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships script files (Python), which the agent can run.

    Shell commands in SKILL.md call:

    • python

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

XLSX loads about 2.7k tokens when it runs. Until then it costs about 113 tokens; SKILL.md has 947 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~113
When it runs · the whole SKILL.md, loaded when a task matches
~2.7k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Proprietary) doesn't allow us to republish the file, so here is its outline and opening line. It has 947 words (~2,657 tokens).

“Unless otherwise stated by the user or existing template”

— opening of SKILL.md by einverne, Proprietary
name
xlsx
license
Proprietary. LICENSE.txt has complete terms

Read the full SKILL.md on GitHub

Files

SKILL.md and 2 other files in claude/skills/document-skills/xlsx of einverne/dotfiles.

  • SKILL.md
  • LICENSE.txt
  • recalc.py

Open the folder on GitHubat commit c6c0686

Used in at least 27 other repositories

We found 70 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 39 other GitHub owners. This page covers the copy in einverne/dotfiles, which our catalogue first saw on October 7, 2026.

…and 20 more copies not listed here.

Compare with similar skills

XLSX next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

XLSX compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
XLSX this skilleinverne/dotfiles12139 repos~2.7kAutomated safety check: PassProprietary
XLSXjjyaoao/HelloAgents3.2k—~5kAutomated safety check: PassProprietary
Data Analysisclaude-office-skills/skills499—~1.8kAutomated safety check: PassMIT
Pie Chart Data AnalysisMichaelYang-lyx/AIDABench1111 repos~964Automated safety check: PassNone
Codebookbrycewang-stanford/Auto-Empirical-Research-Skills4.5k—~527Automated safety check: NotesCustom licence
XLSXaiskillstore/marketplace430—~3.1kAutomated safety check: PassNone

Similar skills

  • XLSX

    jjyaoao/HelloAgents

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    3.2k GitHub stars~5k tokensUpdated 2 days ago
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  • Data Analysis

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    499 GitHub stars~1.8k tokensUpdated 8 mo ago
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    4.5k GitHub stars~527 tokensUpdated 3 days ago
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    aiskillstore/marketplace

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Works with

Categories

Questions about XLSX

What does XLSX do?

Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. XLSX is an agent skill from einverne/dotfiles. Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization.

When should I use XLSX?

XLSX fits situations like: tasks that involve Excel spreadsheets; tasks that involve Data analysis.

How do I install XLSX in Claude Code?

Run `npx skills add einverne/dotfiles --skill xlsx -a claude-code`. Or copy the skill folder (claude/skills/document-skills/xlsx in einverne/dotfiles) into .claude/skills/xlsx in your project. Claude Code loads it when a task matches its description.

How do I install XLSX in Codex?

Run `npx skills add einverne/dotfiles --skill xlsx -a codex`. Or copy the skill folder (claude/skills/document-skills/xlsx in einverne/dotfiles) into .agents/skills/xlsx in your project. Codex loads it when a task matches its description.

Can I use XLSX in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add einverne/dotfiles --skill xlsx -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/xlsx, .gemini/skills/xlsx, .github/skills/xlsx and .opencode/skills/xlsx in your project.

What does XLSX need to run?

Going by SKILL.md and its folder, XLSX needs Python for the scripts in its folder and the command-line tools its instructions call (python). Our summary lists: Python 3.

Does XLSX access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is XLSX safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does XLSX use?

XLSX carries a proprietary licence (declared in SKILL.md). It is published on GitHub, but it is not open source: read the licence file before using or sharing it.

How many tokens does XLSX use?

About 2.7k tokens (SKILL.md is roughly 11k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to XLSX?

Skills that share tags, products or a category with XLSX: XLSX (jjyaoao/HelloAgents, 3.2k stars), Data Analysis (claude-office-skills/skills, 499 stars), Pie Chart Data Analysis (MichaelYang-lyx/AIDABench, 111 stars) and Codebook (brycewang-stanford/Auto-Empirical-Research-Skills, 4.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains XLSX?

einverne (a GitHub user) maintains it in einverne/dotfiles, which has 121 GitHub stars. The repository holds 39 skills in this directory. The repository was last updated on September 9, 2026.

Source: einverne/dotfiles on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.