reogrid

reogrid is a skill for Claude Code, Codex from znlgis/opengis-skills. It costs 50 tokens per session (2,787 once invoked), scanned A, original, MIT.

A spreadsheet control for .NET desktop apps built with WinForms or WPF. It adds an Excel-like grid with formulas, editing, charts, printing, and Excel file support.

In plain words
What is it for?
Use it to embed editable tables, read or write .xlsx and .xls files, validate and sort data, create basic charts, and export or print spreadsheet content.
Why use it?
It avoids building spreadsheet behavior from scratch or requiring Microsoft Excel through COM. It lets desktop users work with familiar rows, columns, formulas, and formatting inside your application.

Skill for Claude CodeCodex

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

Good fit Use it to embed editable tables, read or write .xlsx and .xls files, validate and sort data, create basic charts, and export or print spreadsheet content.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/znlgis/opengis-skills/reogrid
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 znlgis/opengis-skills --skill reogrid
Clone the repo
git clone --depth 1 https://github.com/znlgis/opengis-skills

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 reogrid

README.md
[![agentmods](https://agentmods.dev/badge/skills/znlgis/opengis-skills/reogrid/github.svg)](https://agentmods.dev/skills/znlgis/opengis-skills/reogrid)
Your own site
<a href="https://agentmods.dev/skills/znlgis/opengis-skills/reogrid"><img src="https://agentmods.dev/badge/skills/znlgis/opengis-skills/reogrid/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 reogrid

Your own site · 80×15
<a href="https://agentmods.dev/skills/znlgis/opengis-skills/reogrid"><img src="https://agentmods.dev/badge/skills/znlgis/opengis-skills/reogrid.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,787 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 pass 7 Sept 2026
How audits are shown
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 $0.00050 $0.02787
Opus 5 $0.00025 $0.01393
Sonnet 5 $0.00010 $0.00557
Haiku 4.5 $0.00005 $0.00279

Measured today against content hash 924ba9af538c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

reogrid 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 today.

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.

csharp/reogrid/SKILL.md · 359 lines

How it starts

The opening of the file, as written. The whole thing — 359 lines — stays where its author put it; the contents beside it link to each section on GitHub.

项目地址: https://github.com/unvell/ReoGrid

官网: https://reogrid.net/

NuGet: unvell.ReoGridunvell.ReoGrid.WinFormunvell.ReoGrid.WPF

许可证: MIT(V3 社区版);商业版另购(V4)

概述

ReoGrid 主要能力:

  • WinForms 与 WPF 双控件
  • 单元格:样式、字体、边框、对齐、数据格式
  • 合并单元格、冻结、批注
  • 公式:内置 ~ 100 个 Excel 函数
  • 数据验证、自动筛选、排序
  • 图表:内置基础图表(柱状/折线/饼图)
  • 打印与导出(PDF/CSV)
  • Excel 互通:读写 .xlsx / .xls(依赖 NPOI)
  • 脚本扩展:内嵌 JS 脚本(基于 ReoScript)

ReoGrid 不依赖 Excel/COM,纯托管代码,跨 .NET Framework 与 .NET 6+。


安装

# WinForms
dotnet add package unvell.ReoGrid.WinForm

# WPF
dotnet add package unvell.ReoGrid.WPF

WinForms 入门

using unvell.ReoGrid;
using unvell.ReoGrid.IO;

var grid = new ReoGridControl { Dock = DockStyle.Fill };
this.Controls.Add(grid);

var sheet = grid.CurrentWorksheet;
sheet["A1"] = "ID";
sheet["B1"] = "Name";
sheet["C1"] = "Score";

sheet["A2"] = 1;
sheet["B2"] = "Tom";
sheet["C2"] = 95;

WPF 入门

<Window xmlns:rg="clr-namespace:unvell.ReoGrid;assembly=unvell.ReoGrid.WPF">
  <rg:ReoGridControl x:Name="Grid"/>
</Window>
var sh = Grid.CurrentWorksheet;
sh["A1:C1"] = new object[] { "ID", "Name", "Score" };
sh["A2:C2"] = new object[] { 1, "Tom", 95 };

区域操作

sh.SetRangeData("A2:C4", new object[,] {
    { 1, "Tom",  95 },
    { 2, "Lucy", 88 },
    { 3, "Mike", 72 },
});

object[,] data = (object[,])sh.GetRangeData("A2:C4");

样式

sh.SetRangeStyles("A1:C1", new WorksheetRangeStyle {
    Flag = PlainStyleFlag.All,
    Bold = true,
    BackColor = Color.LightGray,
    HorizontalAlign = ReoGridHorAlign.Center,
    VerticalAlign   = ReoGridVerAlign.Middle,
    TextColor = Color.Black,
    FontSize = 12
});

// 数据格式(百分比 / 日期)
sh.SetRangeDataFormat("C2:C100", CellDataFormatFlag.Percent,
    new NumberDataFormatter.NumberFormatArgs { DecimalPlaces = 2 });

sh.SetRangeDataFormat("D2:D100", CellDataFormatFlag.DateTime,
    new DateTimeDataFormatter.DateTimeFormatArgs { Format = "yyyy-MM-dd" });

Read the full file on GitHub · 359 lines

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. today Changed 924ba9af538c
  2. 9d ago Changed 9778ed239d53
  3. 13d ago First seen · 359 lines · 50 tokens per session scan A 8820e2e232ec

Subscribe to this mod's changes

reogrid is a skill published in the GitHub repository znlgis/opengis-skills (61 stars, last pushed yesterday), licensed MIT. It adds 50 tokens to every session and 2,787 once invoked, about $0.0003 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.