xlsx SKILL.md skillA

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

Install it, pinned

mdr add tamnguyendinh/anvien/xlsx@git:20260604.f9c3d6f

Pins git:20260604.f9c3d6f in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: tamnguyendinh/anvien
Path: internal/aicontext/skills/document-skills/xlsx/SKILL.md
Versions recorded: 2
Latest version: git:20260604.f9c3d6f, committed Jun 4, 2026
First version recorded: Jun 3, 2026
Size: 10,250 bytes
Repository stars: 12
License: MIT

Use when the user asks to create, edit, or analyze spreadsheets.

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

# Requirements for Outputs

## All Excel files

### Zero Formula Errors
- Every Excel model MUST be delivered with ZERO formula errors (#REF!, #DIV/0!, #VALUE!, #N/A, #NAME?)

### Preserve Existing Templates (when updating templates)
- Study and EXACTLY match existing format, style, and conventions when modifying files
- Never impose standardized formatting on files with established patterns
- Existing template conventions ALWAYS override these guidelines

## Financial models

### Color Coding Standards
Unless otherwise stated by the user or existing template

#### Industry-Standard Color Conventions
- **Blue text (RGB: 0,0,255)**: Hardcoded inputs, and numbers users will change for scenarios
- **Black text (RGB: 0,0,0)**: ALL formulas and calculations
- **Green text (RGB: 0,128,0)**: Links pulling from other worksheets within same workbook
- **Red text (RGB: 255,0,0)**: External links to other files
- **Yellow background (RGB: 255,255,0)**: Key assumptions needing attention or cells that need to be updated

### Number Formatting Standards

#### Required Format Rules
- **Years**: Format as text strings (e.g., "2024" not "2,024")
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add tamnguyendinh/anvien/xlsx@sha256:eab75057f03f3e21

The line at the top of this page pins the label git:20260604.f9c3d6f, 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](https://markdownregistry.com/badge/art_xqjlm7fei6ocdhjk.svg)](https://markdownregistry.com/a/art_xqjlm7fei6ocdhjk)

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

Versions

The registry has recorded 2 versions of this file, between Jun 3, 2026 and Jun 4, 2026, about one every day.

version	committed	commit	size	audit
git:20260604.f9c3d6f latest	2026-06-04	f9c3d6f	10,250 B	A	view · diff
git:20260603.57935e2	2026-06-03	57935e2	10,632 B	A	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 (10250 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

tamnguyendinh/anvien · 12 stars · license MIT · pushed 2026-11-02 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_xqjlm7fei6ocdhjk
GET https://markdownregistry.com/api/v1/resolve?ref=tamnguyendinh/anvien/xlsx
GET https://markdownregistry.com/api/v1/blob/eab75057f03f3e217da73077cc5815710aeccea770b77d0d01d445b6bc301d43

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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