local-xlsx-editor

local-xlsx-editor is a skill for Claude Code from OpenAnalystInc/10x-Canva-Skills. It costs 83 tokens per session (1,317 once invoked), scanned A, original, no licence file.

A local tool for editing Excel spreadsheets in XLSX format without using Canva. It can change data, formulas, and formatting while preserving the workbook's existing structure.

In plain words
What is it for?
Use it to edit supplied Excel files, update formulas or data, and change their formatting.
Why use it?
It helps update spreadsheets without losing their formulas, styles, or organization.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Part of the 10x-canva-skills plugin — 23 skills, 1 command, 3 agents shipped together

Good fit Use it to edit supplied Excel files, update formulas or data, and change their formatting.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/openanalystinc/10x-canva-skills/local-xlsx-editor
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 OpenAnalystInc/10x-Canva-Skills --skill local-xlsx-editor
Clone the repo
git clone --depth 1 https://github.com/OpenAnalystInc/10x-Canva-Skills

Made for: Claude Code.

Or install 10x-canva-skills, the plugin that ships this one along with the rest of its 23 skills, 1 command, 3 agents.

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 local-xlsx-editor

README.md
[![agentmods](https://agentmods.dev/badge/skills/openanalystinc/10x-canva-skills/local-xlsx-editor/github.svg)](https://agentmods.dev/skills/openanalystinc/10x-canva-skills/local-xlsx-editor)
Your own site
<a href="https://agentmods.dev/skills/openanalystinc/10x-canva-skills/local-xlsx-editor"><img src="https://agentmods.dev/badge/skills/openanalystinc/10x-canva-skills/local-xlsx-editor/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 local-xlsx-editor

Your own site · 80×15
<a href="https://agentmods.dev/skills/openanalystinc/10x-canva-skills/local-xlsx-editor"><img src="https://agentmods.dev/badge/skills/openanalystinc/10x-canva-skills/local-xlsx-editor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 83 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,317 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 $0.00083 $0.01317
Opus 5 $0.00042 $0.00659
Sonnet 5 $0.00017 $0.00263
Haiku 4.5 $0.00008 $0.00132

Measured 11d ago against content hash c1737106a47e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

local-xlsx-editor 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 11d 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.

.claude/skills/local-xlsx-editor/SKILL.md · 193 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 11d ago First seen · 193 lines · 83 tokens per session scan A c1737106a47e

Subscribe to this mod's changes

local-xlsx-editor is a skill published in the GitHub repository OpenAnalystInc/10x-Canva-Skills (7 stars, last pushed 6mo ago), with no licence file. It adds 83 tokens to every session and 1,317 once invoked, about $0.0004 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 2026-08-31.

Related

Other skills, from other repositories

brand-xlsx

Brand-aware Excel engine. Use to (1) EXTRACT a company's brand from a .xlsx template into a reusable "Brand Profile", (2) COMPREHEND the template with the model (optional), (3) VERIFY it, (4) GENERATE a new on-brand .xlsx from a GridDocument fill manifest. Trigger on "extract our brand", "use our workbook template"…

ferdinandobons/brand-docs · 141 tokens

local-xlsx-editor

Edit Excel spreadsheets (XLSX) locally without Canva API. Use this skill when user provides an XLSX file and wants to modify data, update formulas, or change formatting. Maintains original formulas, formatting, and structure. Does NOT require Canva. Output goes to output/ folder. Use for: "edit this spreadsheet"…

OpenAnalystInc/10x-Content-Expert · 83 tokens

skill-doc-delivery

Convert markdown to DOCX, PPTX, XLSX, PDF office documents — use when you need exportable deliverables.

nyldn/claude-octopus · 29 tokens

add-excel

Adds Excel Online (Business) connector to a Power Apps code app. Use when reading or writing Excel workbook data from OneDrive or SharePoint.

microsoft/power-platform-skills · 33 tokens

document-generation

Generate Word (.docx), Excel (.xlsx) and PowerPoint (.pptx) documents and fill existing PDF forms, from real NetClaw data, with per-element provenance and no fabrication. Use when someone needs a deliverable rather than an answer — a change record to attach to a CR, an audit workbook for a compliance reviewer, a…

automateyournetwork/netclaw · 91 tokens

office-artifacts

Manage Office files, formats and versions; use Writer, Calc or Impress for content.

agent0ai/agent-zero · 21 tokens