Office Document Extractor

Convert Microsoft Office documents (DOCX, XLSX, PPTX) to Markdown without any external dependencies. Use when the user needs to extract text from Word documents, Excel spreadsheets, or PowerPoint presentations for analysis, indexing, or LLM processing. Pure Python implementation — no pip install, no subprocess calls, no network downloads required. Works offline.

Zero-dependency converter for Microsoft Office documents. Extracts text and structure from DOCX, XLSX, and PPTX files into clean Markdown.

Quick Start

# Single file
python3 scripts/main.py report.docx -o report.md

# Batch convert a directory
python3 scripts/main.py ./documents --batch -o ./markdown

Supported Formats

Format	Extension	Output
Word	.docx	Headings, paragraphs
Excel	.xlsx	Tables (one per sheet)
PowerPoint	.pptx	Slides as sections

How It Works

• DOCX: Parses the ZIP archive's XML directly using Python's zipfile and xml.etree
• XLSX: Uses bundled openpyxl (pure Python, no C extensions)
• PPTX: Parses the ZIP archive's slide XML directly

No external commands, no network calls, no pip install required.

Usage

Single File

python3 scripts/main.py <input_file> [-o <output.md>]

Auto-detects format from file extension. If -o is omitted, outputs to <input>.md.

Batch Conversion

python3 scripts/main.py <input_directory> --batch [-o <output_directory>]

Converts all .docx, .xlsx, .pptx files in the directory. Results saved to markdown_output/ by default.

Resources

scripts/

• main.py — Unified CLI for single-file and batch conversion
• docx_extractor.py — DOCX → Markdown (standard library only)
• xlsx_extractor.py — XLSX → Markdown tables (bundled openpyxl)
• pptx_extractor.py — PPTX → Markdown (standard library only)

Bundled Dependencies

• openpyxl/ — Pure Python Excel library (v3.1.5)
• et_xmlfile/ — openpyxl dependency (pure Python)

Limitations

• Does not extract images or embedded objects (text only)
• Does not preserve complex formatting (colors, fonts, layouts)
• Does not handle encrypted/password-protected files
• No OCR for scanned documents (use OpenClaw's native pdf tool for that)

Why This Skill?

Existing markitdown-based skills require pip install or external CLI tools, which triggers ClawHub security warnings. This skill is 100% self-contained — install it and use it immediately, even offline.