xlsx SKILL.md skillA
xlsx from protolabsai/protoagent is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add protolabsai/protoagent/xlsx@git:20261006.9b4f42fPins git:20261006.9b4f42f in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- protolabsai/protoagent
- Path
plugins/cowork/skills/xlsx/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261006.9b4f42f, committed Oct 6, 2026
- First version recorded
- Sep 12, 2026
- Size
- 2,532 bytes
- Repository stars
- 17
- License
- MIT
Produce, edit, or clean spreadsheets (.xlsx/.csv/.tsv) as real files — reconciliations, trackers, budgets, data cleanups, format conversions. Use whenever the deliverable is a spreadsheet or an existing one needs work, including messy tabular data that needs restructuring. Not for Word/PDF/deck outputs.
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
# Spreadsheets with openpyxl
Write the workbook with `execute_code` using `openpyxl`, save into the fenced
project folder (if there are several, ask once which and remember it), report the path. Plain `.csv`
/`.tsv` work uses the stdlib `csv` module — don't drag a workbook library
into a text-file job.
## Creating
```python
from openpyxl import Workbook
from openpyxl.styles import Font
from openpyxl.utils import get_column_letter
wb = Workbook()
ws = wb.active
ws.title = "Summary"
ws.append(["Item", "Owner", "Amount"])
for cell in ws[1]:
cell.font = Font(bold=True)
for row in rows:
ws.append(row)
ws.freeze_panes = "A2"
for i, _ in enumerate(ws[1], 1):
ws.column_dimensions[get_column_letter(i)].width = 18
wb.save(path)
```
## Formulas — the one big trap
openpyxl writes formula *strings* (`ws["C10"] = "=SUM(C2:C9)"`) but **never
computes them**, and reading a formula cell back gives the formula, not a
value. So:
- If the operator will open the file in Excel: write formulas — they compute
on open, and edits stay live.
- If a downstream step (or your verification) needs the *values*: compute in
…Read the whole file at its exact version.
How to install
mdr add protolabsai/protoagent/xlsx@sha256:b701438cba59d0ffThe line at the top of this page pins the label git:20261006.9b4f42f, 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_l3o6azrak53oef6q)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Sep 12, 2026 and Oct 6, 2026, about one every 12 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261006.9b4f42f latest | 2026-10-06 | 9b4f42f | 2,532 B | A | view · diff |
| git:20260912.2e144f3 | 2026-09-12 | 2e144f3 | 2,532 B | A | view · diff |
| git:20260912.42516ad | 2026-09-12 | 42516ad | 2,506 B | A | view |
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 (2532 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
protolabsai/protoagent · 17 stars · license MIT · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_l3o6azrak53oef6q GET https://markdownregistry.com/api/v1/resolve?ref=protolabsai/protoagent/xlsx GET https://markdownregistry.com/api/v1/blob/b701438cba59d0ff420b48f04432f19afa5f43f51e0997708a46fa5468bda784
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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