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tanis90

Excel To Markdown

by tanis90 · GitHub ↗ · v1.0.0 · MIT-0
cross-platform ✓ Security Clean
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Install in OpenClaw
/install excel-to-markdown
Description
Document to Markdown converter - convert DOCX, PPTX, Excel files to Markdown. Use when extracting content from Word documents, PowerPoint presentations, or E...
README (SKILL.md)

\r \r

Excel to Markdown - Table Extraction\r

\r Convert Word, PowerPoint, and Excel files to Markdown using MinerU Open API. No API key required.\r \r

Quick Start\r

\r

# Excel to Markdown - Table Extraction\r
mineru-open-api flash-extract report.docx\r
\r
# Excel to Markdown - Table Extraction\r
mineru-open-api flash-extract slides.pptx\r
\r
# Excel to Markdown - Table Extraction\r
mineru-open-api flash-extract data.xlsx\r
\r
# Excel to Markdown - Table Extraction\r
mineru-open-api flash-extract https://example.com/report.docx\r
\r
# Excel to Markdown - Table Extraction\r
mineru-open-api flash-extract report.docx -o ./output/\r
```\r
\r
## Language Rule\r
\r
You MUST reply to the user in the SAME language they use. This is non-negotiable.\r
\r
## Capabilities\r
\r
- Converts DOCX, PPTX, XLS, XLSX to Markdown\r
- Supports both local files and URLs directly\r
- Preserves text, tables, and document structure\r
- No API key, no signup, no authentication\r
- Max 10MB / 20 pages per document\r
\r
## When to Use\r
\r
- User asks to "read", "extract", or "convert" a Word/PowerPoint/Excel file\r
- User shares a .docx, .pptx, or .xlsx and asks for its content\r
- User wants to summarize or analyze an office document\r
- User needs document content in Markdown format\r
\r
## CLI Reference\r
\r
Run `mineru-open-api flash-extract --help` for all available options.\r
\r
## Data Privacy\r
\r
- `flash-extract` uploads the document to MinerU's cloud API for processing and returns the result. No account or API key is required.\r
- Documents are processed in real-time and are not stored after extraction.\r
- For details, see https://mineru.net\r
\r
## Notes\r
\r
- Output is Markdown only; embedded images may be replaced with placeholders\r
- For larger files (up to 200MB/600 pages) or precision extraction, use `mineru-open-api extract` (requires auth via `mineru-open-api auth`)\r
- If the CLI cannot be installed via npm/uv/go, download it from https://mineru.net/ecosystem?tab=cli\r
Usage Guidance
This skill appears to do what it says: it runs the mineru-open-api CLI to upload and convert documents to Markdown. Before installing or using it, consider: (1) privacy — flash-extract uploads files to MinerU's cloud (verify mineru.net's privacy/storage policy if documents contain sensitive or confidential data); (2) supply-chain trust — prefer installing the CLI from known, verified package sources and check the npm/go package details and repository to ensure authenticity; (3) URL handling — be cautious about passing internal or private URLs (risk of server-side request forgery or exposing private data); (4) for very large or sensitive documents, prefer local/offline conversion tools or verify that the vendor offers guaranteed non-persistence. If you need, I can help locate the mineru-open-api npm package and GitHub repo to inspect release authenticity and source code.
Capability Analysis
Type: OpenClaw Skill Name: excel-to-markdown Version: 1.0.0 The skill is a document converter designed to transform DOCX, PPTX, and Excel files into Markdown using the MinerU Open API. It is transparent about its functionality, explicitly stating in SKILL.md that files are uploaded to a third-party cloud service (mineru.net) for processing. The installation methods (npm, uv, go) and CLI usage are consistent with the stated purpose, and no evidence of malicious intent, data exfiltration of sensitive system files, or prompt injection was found.
Capability Assessment
Purpose & Capability
Name/description match the runtime instructions: the skill invokes the mineru-open-api CLI to convert DOCX/PPTX/XLSX to Markdown. Requiring the mineru-open-api binary and offering npm/uv/go install options is coherent with that purpose.
Instruction Scope
SKILL.md only instructs use of the mineru-open-api CLI (flash-extract) against local files or URLs. That stays within the declared purpose, but the CLI uploads documents to MinerU's cloud for processing (stated in the doc) — this is expected for the feature but is an important privacy/attack-surface consideration (remote uploads, URL fetching/SSRF risk).
Install Mechanism
Install options are npm, uv, and go install from a GitHub repo. These are typical package-install mechanisms; none of the install specs point to an untrusted shortener or arbitrary binary download. The go package references a GitHub repo which is traceable via source control.
Credentials
The skill declares no required environment variables or credentials, which matches SKILL.md claims (flash-extract requires no API key). No unrelated credentials or config paths are requested.
Persistence & Privilege
The skill does not request always:true and has no special persistence or system-wide configuration changes. It is user-invocable and can be called autonomously by the agent (the platform default), which is expected for a conversion helper.
How to Use
  1. Make sure OpenClaw is installed (local or Docker)
  2. Run the install command in chat: /install excel-to-markdown
  3. After installation, invoke the skill by name or use /excel-to-markdown
  4. Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.0
Initial release of excel-to-markdown. - Converts Word (.docx), PowerPoint (.pptx), and Excel (.xls/.xlsx) files to Markdown using MinerU Open API. - Supports local files and URLs; no API key or signup required. - Preserves tables, text, and document structure. - Handles files up to 10MB or 20 pages per document. - CLI examples and installation instructions included.
Metadata
Slug excel-to-markdown
Version 1.0.0
License MIT-0
All-time Installs 0
Active Installs 0
Total Versions 1
Frequently Asked Questions

What is Excel To Markdown?

Document to Markdown converter - convert DOCX, PPTX, Excel files to Markdown. Use when extracting content from Word documents, PowerPoint presentations, or E... It is an AI Agent Skill for Claude Code / OpenClaw, with 177 downloads so far.

How do I install Excel To Markdown?

Run "/install excel-to-markdown" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.

Is Excel To Markdown free?

Yes, Excel To Markdown is completely free, licensed under MIT-0. You can download, install and use it at no cost.

Which platforms does Excel To Markdown support?

Excel To Markdown is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).

Who created Excel To Markdown?

It is built and maintained by tanis90 (@tanis90); the current version is v1.0.0.

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