XLSX

What it does

When your agent uses it

• The user asks to make a spreadsheet
• Generate an Excel file
• Create a table as xlsx
• Import CSV/TSV to xlsx

Example prompts

• “/xlsx”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

1. 1For creation tasks, use skills/xlsx/scripts/create_xlsx.cjs to create a new workbook from headers/rows or JSON data. Fall back to a…
2. 2Use skills/xlsx/scripts/import_delimited.cjs for messy CSV or TSV inputs when it saves time, then polish the workbook with xlsx-populate.
3. 3Do table reshaping in plain JavaScript, then write the final workbook with xlsx-populate.
4. 4After meaningful formula edits, run LibreOffice-backed recalculation when soffice is available so cached values and error checks are…
5. 5Save the finished workbook inside the workspace and return the .xlsx artifact.

What it can do on your machine

Read from SKILL.md and the folder at commit 8162701. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Ships 3 files in scripts/ (JavaScript), which the agent can run.

  Shell commands in SKILL.md call:

  • node

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

XLSX loads about 1.7k tokens when it runs, and up to ~2.1k if it reads all its reference files. Until then it costs about 61 tokens; SKILL.md has 592 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~61

When it runs · the whole SKILL.md, loaded when a task matches

~1.7k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~2.1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from HybridAIOne/hybridclaw at commit 8162701, republished under its MIT licence (© HybridAIOne). 592 words, ~1,682 tokens.

name

xlsx

description

Create, edit, inspect, and analyze `.xlsx` spreadsheets and Excel workbooks. Use this skill whenever the user asks to make a spreadsheet, generate an Excel file, create a table as xlsx, import CSV/TSV to xlsx, or work with any `.xlsx` file.

user-invocable

true

disable-model-invocation

false

requires.bins

node

requires.node_modules

xlsx, xlsx-populate, csv-parse, iconv-lite

node skills/xlsx/scripts/create_xlsx.cjs output.xlsx --headers "Name,Age,City" --rows "Alice,30,NYC;Bob,25,LA" --json
node skills/xlsx/scripts/recalc.cjs workbook.xlsx --json
node skills/xlsx/scripts/import_delimited.cjs raw.csv cleaned.xlsx --json

const XlsxPopulate = require("xlsx-populate");

async function main() {
  const workbook = await XlsxPopulate.fromBlankAsync();
  const sheet = workbook.sheet(0).name("Summary");

  sheet.cell("A1").value("Revenue");
  sheet.cell("B1").value("Cost");
  sheet.cell("C1").value("Profit");
  sheet.cell("A2").value(120000);
  sheet.cell("B2").value(45000);
  sheet.cell("C2").formula("A2-B2");

  sheet.range("A1:C1").style({
    bold: true,
    horizontalAlignment: "center",
    fill: "D9EAF7"
  });

  sheet.freezePanes("A2");
  sheet.column("A").width(16);
  sheet.column("B").width(16);
  sheet.column("C").width(16);

  await workbook.toFileAsync("profit-summary.xlsx");
}

main();

node skills/xlsx/scripts/create_xlsx.cjs output.xlsx --headers "Name,Age,City" --rows "Alice,30,NYC;Bob,25,LA" --json

node skills/xlsx/scripts/create_xlsx.cjs output.xlsx --json-data '[{"Name":"Alice","Age":30},{"Name":"Bob","Age":25}]' --json

node skills/xlsx/scripts/create_xlsx.cjs output.xlsx --headers "Revenue,Cost,Profit" --rows "120000,45000,=A2-B2" --sheet-name "Summary" --json

© HybridAIOne, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 4 other files (scripts, references) in skills/xlsx of HybridAIOne/hybridclaw.

• SKILL.md
• references/financial-modeling.md
• scripts/create_xlsx.cjs
• scripts/import_delimited.cjs
• scripts/recalc.cjs

Open the folder on GitHubat commit 8162701