officecli-xlsx

officecli-xlsx is a skill for Claude Code, Codex from CHENyiru3/AI-Skills-Collections. It costs 45 tokens per session (346 once invoked), scanned A, original, MIT.

A set of instructions for working with XLSX files, the spreadsheet format used by Microsoft Excel. It covers inspecting, editing, creating, and checking sheets, formulas, charts, validations, and named ranges.

In plain words
What is it for?
Use it to create or edit workbooks, update cells and formulas, build financial models or trackers, and validate the finished spreadsheet.
Why use it?
It helps agents preserve spreadsheet structure and find problems such as broken references or division-by-zero errors before delivery.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to create or edit workbooks, update cells and formulas, build financial models or trackers, and validate the finished spreadsheet.

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Install with agentmods
npx agentmods add skills/chenyiru3/ai-skills-collections/officecli-xlsx
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 CHENyiru3/AI-Skills-Collections --skill officecli-xlsx
Clone the repo
git clone --depth 1 https://github.com/CHENyiru3/AI-Skills-Collections

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 officecli-xlsx

README.md
[![agentmods](https://agentmods.dev/badge/skills/chenyiru3/ai-skills-collections/officecli-xlsx/github.svg)](https://agentmods.dev/skills/chenyiru3/ai-skills-collections/officecli-xlsx)
Your own site
<a href="https://agentmods.dev/skills/chenyiru3/ai-skills-collections/officecli-xlsx"><img src="https://agentmods.dev/badge/skills/chenyiru3/ai-skills-collections/officecli-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 officecli-xlsx

Your own site · 80×15
<a href="https://agentmods.dev/skills/chenyiru3/ai-skills-collections/officecli-xlsx"><img src="https://agentmods.dev/badge/skills/chenyiru3/ai-skills-collections/officecli-xlsx.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 346 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 original 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 $0.00045 $0.00346
Opus 5.5 $0.00018 $0.00138
Sonnet 5.5 $0.00009 $0.00069
Haiku 4.5 $0.00005 $0.00035

Measured 6d ago against content hash 0423e9c88f58, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

officecli-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 6d ago.

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-market/documents/office/officecli-xlsx/SKILL.md · 51 lines

What it actually says

OfficeCLI XLSX Skill

First Check

command -v officecli
officecli --version

Workflow

  1. Inspect first: view, get, query
  2. For new workbooks, read creating.md
  3. For existing workbooks, read editing.md
  4. Run QA: view issues, formula checks, validate

Reading

officecli view data.xlsx text --start 1 --end 40 --cols A,B,C
officecli view data.xlsx outline
officecli view data.xlsx annotated
officecli view data.xlsx stats
officecli view data.xlsx issues
officecli get data.xlsx "/Sheet1/A1"
officecli query data.xlsx 'cell:has(formula)'

Editing Rules

  • Quote indexed paths in zsh: "/Sheet1/row[1]"
  • Use formulas for calculated values instead of hardcoding results
  • Use officecli xlsx set cell or officecli xlsx add before guessing properties
  • Prefer batch mode for many cell updates
  • Verify cross-sheet formulas after writing them

QA

officecli view data.xlsx issues
officecli query data.xlsx 'cell:contains("#REF!")'
officecli query data.xlsx 'cell:contains("#DIV/0!")'
officecli validate data.xlsx
Files

What ships with it

2 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. 6d ago First seen · 51 lines · 45 tokens per session scan A 0423e9c88f58

Subscribe to this mod's changes

officecli-xlsx is a skill published in the GitHub repository CHENyiru3/AI-Skills-Collections (1 stars, last pushed 7d ago), licensed MIT. It adds 45 tokens to every session and 346 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-10-02.