xlsx SKILL.md skillA

xlsx from hkuds/deeptutor is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add hkuds/deeptutor/xlsx@git:20260907.86aa5d0

Pins git:20260907.86aa5d0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
hkuds/deeptutor
Path
deeptutor/skills/builtin/xlsx/SKILL.md
Versions recorded
5
Latest version
git:20260907.86aa5d0, committed Sep 7, 2026
First version recorded
Jun 11, 2026
Size
7,805 bytes
Repository stars
54,813
License
Apache-2.0

Read, create, or edit Excel spreadsheets (.xlsx/.xlsm) — sheet data,.

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 (.xlsx) workbooks

## Runtime

Use `exec` with complete Python source (`language: python`). Prefer creating,
saving, reopening, and validating the workbook in one call; later calls can
revise the same relative filename. Follow the turn's **User workspace**
instructions for locating inputs, output boundaries, and presenting the
finished file.

Use **openpyxl** for cells, formulas, styles, charts, merged cells, multi-sheet
workbooks, number formats, and streaming large sheets. It is declared by every
supported DeepTutor installation. Do not assume pandas is installed: it exists
in the Docker runner but is not a direct dependency of every pip/source install.

## THE critical gotcha: openpyxl writes formulas but never computes them

`ws["B10"] = "=SUM(B2:B9)"` stores the formula *string*. openpyxl has no formula
engine — the cached value stays empty (or stale, on an edited file). So:

- A workbook you create/edit with openpyxl opens fine in Excel/LibreOffice (they
  recompute on open), but its cached values are wrong until then.
- Anything reading cached values first — `data_only=True`, another
  pandas/openpyxl pass, or a downstream tool — sees blanks/stale data.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add hkuds/deeptutor/xlsx@sha256:9f5e476f8692ff73

The line at the top of this page pins the label git:20260907.86aa5d0, 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_yajeurbjzv5ta77m.svg)](https://markdownregistry.com/a/art_yajeurbjzv5ta77m)

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

Versions

The registry has recorded 5 versions of this file, between Jun 11, 2026 and Sep 7, 2026, about one every 22 days.

versioncommittedcommitsizeaudit
git:20260907.86aa5d0 latest2026-09-07 86aa5d0 7,805 BA view · diff
git:20260906.04040a22026-09-06 04040a2 7,804 BA view · diff
git:20260827.8b24f1a2026-08-27 8b24f1a 7,101 BA view · diff
git:20260724.5b2a0222026-07-24 5b2a022 7,046 BA view · diff
git:20260611.46093e52026-06-11 46093e5 7,185 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 (7805 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

hkuds/deeptutor · 54,813 stars · license Apache-2.0 · pushed 2026-10-31 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_yajeurbjzv5ta77m
GET https://markdownregistry.com/api/v1/resolve?ref=hkuds/deeptutor/xlsx
GET https://markdownregistry.com/api/v1/blob/9f5e476f8692ff737bf3251d00e71e52e9b6a9f3837b78914f428022fba89868

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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