excel-xlsx-skill SKILL.md skillA
excel-xlsx-skill from cxcscmu/skilllearnbench is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add cxcscmu/skilllearnbench/excel-xlsx-skill@git:20260424.d50cf5aPins git:20260424.d50cf5a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- cxcscmu/skilllearnbench
- Path
skills/b1-one-shot-claude-haiku-4-5/weighted-gdp-calculation/excel-xlsx-skill/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260424.d50cf5a, committed Apr 24, 2026
- Size
- 2,956 bytes
- Repository stars
- 91
- License
- MIT
Use the xlsx skill tool to create, read, modify and analyze Excel spreadsheets with formulas and formatting.
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 Skill Tool ## Overview The `xlsx` skill is used to work with Excel spreadsheets (.xlsx, .xlsm, .csv, .tsv). It supports creating spreadsheets, reading data, modifying cells, adding formulas, and data analysis. ## When to Use - Creating new spreadsheets from scratch - Reading or analyzing existing spreadsheet data - Modifying cells while preserving existing formulas and formatting - Adding formulas and performing calculations - Analyzing data and creating visualizations ## Setup The xlsx skill is built-in and available through the Skill tool. No installation required. ## Usage Patterns ### Reading a Spreadsheet ``` Read the file 'data.xlsx' and understand the structure Invoke the xlsx skill with operation: read ``` ### Modifying Cells ``` To set a formula in a cell: Use xlsx skill with operation: write_cell Specify: file path, sheet name, cell reference, value/formula To modify multiple cells: Use xlsx skill with operation: batch_write ``` ### Working with Formulas When adding formulas to Excel: - Use cell references like A1, B2:B10 - Use sheet references like Sheet1!A1 - Formulas start with `=` - For multi-sheet references: ='SheetName'!CellRef …
Read the whole file at its exact version.
How to install
mdr add cxcscmu/skilllearnbench/excel-xlsx-skill@sha256:67de719e25d2bb08The line at the top of this page pins the label git:20260424.d50cf5a, 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.
[](https://markdownregistry.com/a/art_2ciqf5jkmfcju6bj)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Apr 24, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (2956 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
cxcscmu/skilllearnbench · 91 stars · license MIT · pushed 2026-10-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_2ciqf5jkmfcju6bj GET https://markdownregistry.com/api/v1/resolve?ref=cxcscmu/skilllearnbench/excel-xlsx-skill GET https://markdownregistry.com/api/v1/blob/67de719e25d2bb08441c48304802081b2592b80c8b7ed52ccb98ebc70290a834
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.