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Xlsx

Listed
davepoon·vlatest·writing·MIT

Extracts data, formulas, and insights from Excel (.xlsx) files to inform writing projects quickly and accurately.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add davepoon/buildwithclaude --skill xlsx -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

davepoon

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill failed 1 of 6 checks. A failure is not proof of bad intent; it means something in the code needs a human to look at it before you run it.

  • No undeclared network calls: failed

    Contacts 1 host that is neither well-known infrastructure nor declared in the skill's frontmatter: openoffice.org.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

    Hosts contacted

    openoffice.orgundeclared

    What it found

    • plugins/all-skills/skills/xlsx/recalc.py:37contacts openoffice.org
      <script:module xmlns:script="http://openoffice.org/2000/script" script:name="Module1" script:language="StarBasic">

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned davepoon/buildwithclaude at fc03a95b41.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
fc03a95b41
Manifest
plugins/all-skills/skills/xlsx/SKILL.md
Scanned
3 files, 450 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

This skill enables AI agents to generate, read, and manipulate Excel spreadsheet files (.xlsx). It allows agents to create new spreadsheets from scratch or update existing ones by adding, removing, or modifying rows and columns.

When to use it

  • You need an agent to automatically generate financial reports, inventory logs, or sales summaries in a format compatible with standard office software.
  • Your workflow requires data analysis where the AI must ingest tabular data from an Excel file to perform calculations or insights.
  • You want to automate repetitive data entry tasks by having the agent populate structured cells based on natural language instructions.

Key capabilities

  • Create new .xlsx files with defined structures and headers.
  • Read existing spreadsheet data for analysis or processing.
  • Modify cell values, add rows, and delete columns dynamically.
  • Handle complex formatting and layout requirements within spreadsheets.

Example prompts

  • "Create a new Excel file named 'Q3_Sales_Report.xlsx' with columns for Date, Product, Quantity, and Total Price."
  • "Read the attached inventory list and generate a summary table showing total stock value per category."
  • "Update the second column in my existing spreadsheet to include calculated tax amounts based on the price in the first column."

Tips & gotchas

Ensure your AI agent has write permissions to the target directory where the .xlsx files will be saved. For complex formatting or very large datasets, verify that the underlying library supports the specific Excel features you require, such as merged cells or advanced formulas.