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xlsx

xlsx is a skill for Claude Code, Codex from proma-ai/Proma. It costs 201 tokens per session (2,844 once invoked), scanned A, original, AGPL-3.0.

Instructions for working with spreadsheet files such as XLSX, XLSM, CSV, and TSV files.

In plain words
What is it for?
It is intended for tasks such as reading, editing, cleaning, calculating, formatting, charting, or creating spreadsheet data.
Why use it?
The available description does not specify the particular spreadsheet operation or added capability.

Skill for Claude CodeCodex

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

not rated 2.2krepo +10 1mo ago A scan SkillSpector: warn 201 tokens AGPL-3.0

Good fit It is intended for tasks such as reading, editing, cleaning, calculating, formatting, charting, or creating spreadsheet data.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/proma-ai/proma/xlsx
View source ↗ proma-ai/Proma proma.cool
About the project

Proma is a local-first AI desktop application that combines multi-model chat, general-purpose agents, workspaces, skills, MCP servers, remote bots, and shared memory. People use it as a workspace for personal workflows, letting agents handle files, browser tasks, long-running jobs, and collaborative subtasks while storing sessions and configuration locally.

proma-ai/Proma · 2,232 stars · on GitHub · proma.cool

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 proma-ai/Proma --skill xlsx
Clone the repo
git clone --depth 1 https://github.com/proma-ai/Proma

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/proma-ai/proma/xlsx/github.svg)](https://agentmods.dev/skills/proma-ai/proma/xlsx)
Your own site
<a href="https://agentmods.dev/skills/proma-ai/proma/xlsx"><img src="https://agentmods.dev/badge/skills/proma-ai/proma/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/proma-ai/proma/xlsx"><img src="https://agentmods.dev/badge/skills/proma-ai/proma/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 2,844 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Prompt Injection · line 102
    Subtle instructions detected that may alter agent decision-making or introduce hidden biases.
    Fix: Review content for implicit steering or bias. Ensure instructions are explicit and align with the skill's stated purpose.
How audits are shown
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 $0.02844
Opus 5.5 $0.00080 $0.01138
Sonnet 5.5 $0.00040 $0.00569
Haiku 4.5 $0.00020 $0.00284

Measured 1mo ago against content hash 2e587490e26c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 1mo 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.

apps/electron/default-skills/xlsx/SKILL.md · 293 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, 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. 1mo ago First seen · 293 lines · 201 tokens per session scan A 2e587490e26c

Subscribe to this mod's changes

xlsx is a skill published in the GitHub repository proma-ai/Proma (2,232 stars, last pushed 1mo ago), licensed AGPL-3.0. It adds 201 tokens to every session and 2,844 once invoked, about $0.0008 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 2026-08-30.

DocumentsSpreadsheetsagentagent-sdkagentschatbotchatgptclaude
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