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xlsx

xlsx is a skill for Claude Code, Codex from jim60105/copilot-prompt. It costs 201 tokens per session (2,876 once invoked), scanned A, original, GFDL-1.3.

A guide for working with spreadsheet files such as Excel workbooks, CSV files, and tab-separated data.

In plain words
What is it for?
Use it to read, create, edit, clean, calculate, format, or chart .xlsx, .xlsm, .csv, and .tsv files.
Why use it?
It provides the workflow for handling spreadsheets when they are the main input or output of a task.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

not rated 21repo 2d ago A scan 201 tokens GFDL-1.3

Good fit Use it to read, create, edit, clean, calculate, format, or chart .xlsx, .xlsm, .csv, and .tsv files.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jim60105/copilot-prompt/xlsx
View source ↗ jim60105/copilot-prompt
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add jim60105/copilot-prompt --skill xlsx
Clone the repo
git clone --depth 1 https://github.com/jim60105/copilot-prompt

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for xlsx

README.md
[![agentmods](https://agentmods.dev/badge/skills/jim60105/copilot-prompt/xlsx/github.svg)](https://agentmods.dev/skills/jim60105/copilot-prompt/xlsx)
Your own site
<a href="https://agentmods.dev/skills/jim60105/copilot-prompt/xlsx"><img src="https://agentmods.dev/badge/skills/jim60105/copilot-prompt/xlsx/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for xlsx

Your own site · 80×15
<a href="https://agentmods.dev/skills/jim60105/copilot-prompt/xlsx"><img src="https://agentmods.dev/badge/skills/jim60105/copilot-prompt/xlsx.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 201 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,876 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00201 $0.02876
Opus 5 $0.00101 $0.01438
Sonnet 5 $0.00040 $0.00575
Haiku 4.5 $0.00020 $0.00288

Measured 9d ago against content hash ecd0a3269b20, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

xlsx scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

The scan reads SKILL.md. This mod also ships 13 executable files (scripts/office/helpers/__init__.py, scripts/office/helpers/merge_runs.py, scripts/office/helpers/simplify_redlines.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/xlsx/SKILL.md · 296 lines

The source is not reproduced here

Licensed GFDL-1.3

The repository is licensed GFDL-1.3, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

53 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 296 lines · 201 tokens per session scan A ecd0a3269b20

Subscribe to this mod's changes

xlsx is a skill published in the GitHub repository jim60105/copilot-prompt (21 stars, last pushed 2d ago), licensed GFDL-1.3. It adds 201 tokens to every session and 2,876 once invoked, about $0.0010 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

DocumentsSpreadsheetsaigithub-copilotprompt-engineeringskillskill-mdskills
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