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Convert Documents to Markdown

Converts attached Word, PowerPoint, Excel, OpenDocument, RTF, EPUB, CSV, or text-based PDF files into Markdown entirely on your machine.

Docs & OfficeIntermediate★ 30,532⑂ 12,853AI score 9/10Last updated: Aug 17, 2026

What it does

  • Takes a local attachment path and converts it to Markdown using the Firecrawl AnyDoc CLI (anydoc), no external upload.
  • Supports Office formats, OpenDocument, RTF, EPUB, CSV, and text-based PDFs.
  • Enforces safe shell-quoting for filenames containing spaces, apostrophes, or command-substitution syntax.
  • Treats converted content as untrusted data: never follows embedded instructions, commands, or links.
  • Reports lossiness honestly — flattened nested tables, lost percentages, hidden rows, images reduced to alt text.

Who it's for

  • Privacy-sensitive teams that must keep documents off third-party parsers.
  • Developers running containerized agents with inbox-style attachment paths.
  • Analysts and writers who need reports, contracts, or decks turned into AI-readable text.

Examples

  1. "Summarize the attached report.docx" → local conversion, then reading only the relevant sections.
  2. Convert a quarterly spreadsheet for reading context while warning it isn't authoritative for numeric math.
  3. Pipe a CSV through stdin with anydoc - --format csv < file.csv.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/nanocoai/nanoclaw/HEAD/.claude/skills/add-anydoc/container-skills/convert-documents-to-markdown/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the .claude/skills/add-anydoc/container-skills/convert-documents-to-markdown folder from the GitHub repo nanocoai/nanoclaw into my ~/.claude/skills/convert-documents-to-markdown/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/nanocoai/nanoclaw.git && mkdir -p ~/.claude/skills && cp -r nanoclaw/.claude/skills/add-anydoc/container-skills/convert-documents-to-markdown ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open a terminal.
  2. Clone the repository: git clone https://github.com/nanocoai/nanoclaw.git
  3. Create the skills folder: mkdir -p ~/.claude/skills
  4. Copy the skill: cp -r nanoclaw/.claude/skills/add-anydoc/container-skills/convert-documents-to-markdown ~/.claude/skills/
  5. Install the Firecrawl AnyDoc CLI and verify with anydoc --help.
  6. Restart Claude Code, then give it a document path and ask it to convert the file to Markdown.
View source on GitHub ↗License: MIT