xlsx SKILL.md skillA

xlsx from appautomaton/document-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add appautomaton/document-skills/xlsx@git:20261015.d8b7599

Pins git:20261015.d8b7599 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
appautomaton/document-skills
Path
xlsx/SKILL.md
Versions recorded
8
Latest version
git:20261015.d8b7599, committed Oct 15, 2026
First version recorded
Mar 26, 2026
Size
5,927 bytes
Repository stars
181
License
MIT

Create, edit, analyze, and recalculate Excel workbooks (.xlsx, .xlsm) with live formulas, formatting, and charts. Use when a task produces or modifies a spreadsheet file, turns CSV/TSV data into one, or needs values, formulas, or formatting read from one.

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

# Excel workbooks

You already know openpyxl and pandas. This skill adds what you can't see from the code: a recalculation step that reports what is actually wrong in the workbook, and the behaviours of openpyxl and LibreOffice that silently break files.

## Running scripts

`<skill>` is the directory containing this file. Run bundled scripts by absolute path from the user's working directory, so relative paths to their files keep working:

```bash
uv run <skill>/scripts/recalc.py model.xlsx
```

Run Python you write with its dependencies declared, either `uv run --with openpyxl script.py` or a PEP 723 header. Recalculation needs LibreOffice (`soffice`).

## Choosing a tool

- **openpyxl** for any workbook you deliver: formulas, formatting, charts, validation, comments. It keeps charts, images, comments, data validation and conditional formatting of files it loads. It drops what it does not model, such as shapes, text boxes, slicers and form controls, so check before editing a workbook that has them.
- **pandas** for analysis and bulk reads. Its writer keeps only values, so never use it to edit a workbook someone will keep working in.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add appautomaton/document-skills/xlsx@sha256:3b080d9eafa3dfda

The line at the top of this page pins the label git:20261015.d8b7599, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_ariiw7fm3tz3sbh4.svg)](https://markdownregistry.com/a/art_ariiw7fm3tz3sbh4)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 8 versions of this file, between Mar 26, 2026 and Oct 15, 2026, about one every 29 days.

versioncommittedcommitsizeaudit
git:20261015.d8b7599 latest2026-10-15 d8b7599 5,927 BA view · diff
git:20261015.f643aba2026-10-15 f643aba 5,674 BA view · diff
git:20261015.48ee14d2026-10-15 48ee14d 5,677 BA view · diff
git:20260701.d0340302026-07-01 d034030 15,989 BA view · diff
git:20260608.e16861b2026-06-08 e16861b 15,554 BA view · diff
git:20260608.f149e602026-06-08 f149e60 15,575 BA view · diff
git:20260608.850e08a2026-06-08 850e08a 15,585 BA view · diff
git:20260326.1a5825f2026-03-26 1a5825f 15,638 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (5927 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

appautomaton/document-skills · 181 stars · license MIT · pushed 2026-10-15 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_ariiw7fm3tz3sbh4
GET https://markdownregistry.com/api/v1/resolve?ref=appautomaton/document-skills/xlsx
GET https://markdownregistry.com/api/v1/blob/3b080d9eafa3dfdaa812163d3c934946573912de367b74a5a6bdb2f901f1711e

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.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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