> ## Documentation Index
> Fetch the complete documentation index at: https://mintlify.com/anthropics/skills/llms.txt
> Use this file to discover all available pages before exploring further.

# Document Processing Skills

> Skills for creating, editing, and analyzing Word, PDF, PowerPoint, and Excel documents

Document processing skills enable Claude to work with professional document formats including DOCX, PDF, PPTX, and XLSX files.

## Available Skills

<CardGroup cols={2}>
  <Card title="DOCX" icon="file-word" href="/reference/docx">
    Create, read, edit, and manipulate Word documents with professional formatting
  </Card>

  <Card title="PDF" icon="file-pdf" href="/reference/pdf">
    Process PDFs: extract text/tables, merge/split files, fill forms, and add watermarks
  </Card>

  <Card title="PPTX" icon="file-powerpoint" href="/reference/pptx">
    Create and edit PowerPoint presentations with design-forward layouts
  </Card>

  <Card title="XLSX" icon="file-excel" href="/reference/xlsx">
    Build and edit Excel spreadsheets with formulas, formatting, and financial models
  </Card>
</CardGroup>

## DOCX (Word Documents)

Use the DOCX skill whenever you need to create, read, edit, or manipulate Word documents.

**When to use:**

* Creating professional documents with formatting (headings, tables of contents, page numbers)
* Extracting or reorganizing content from .docx files
* Working with tracked changes and comments
* Converting content into polished Word documents

**Key capabilities:**

* Create documents from scratch using docx-js
* Edit existing documents by unpacking/editing XML/repacking
* Professional formatting: styles, lists, tables, images
* Headers/footers, page breaks, table of contents
* Tracked changes and comments

[View DOCX Documentation →](/reference/docx)

## PDF Processing

Use the PDF skill for any task involving PDF files.

**When to use:**

* Extracting text or tables from PDFs
* Merging or splitting PDF files
* Filling PDF forms
* Adding watermarks or encrypting PDFs
* OCR on scanned documents

**Key capabilities:**

* Text and table extraction with pdfplumber
* Merge, split, rotate pages with pypdf
* Create PDFs from scratch with reportlab
* Fill forms programmatically
* Password protection and encryption

[View PDF Documentation →](/reference/pdf)

## PPTX (PowerPoint Presentations)

Use the PPTX skill when working with presentation files.

**When to use:**

* Creating slide decks or pitch presentations
* Reading or extracting content from presentations
* Editing existing slide files
* Working with templates and layouts

**Key capabilities:**

* Read presentations with markitdown
* Edit via XML manipulation
* Create from scratch with pptxgenjs
* Design guidance for professional-looking slides
* Color palettes, typography, and layout best practices

**Design principles:**

* Choose bold, content-informed color palettes
* Every slide needs a visual element (image, chart, icon, or shape)
* Use interesting font pairings (avoid Arial defaults)
* Include proper spacing and breathing room

[View PPTX Documentation →](/reference/pptx)

## XLSX (Excel Spreadsheets)

Use the XLSX skill when working with spreadsheet files.

**When to use:**

* Opening, reading, or editing .xlsx, .xlsm, .csv, or .tsv files
* Creating spreadsheets from scratch or from data
* Building financial models with formulas
* Cleaning or restructuring tabular data

**Key capabilities:**

* Data analysis with pandas
* Formula-based spreadsheets with openpyxl
* Professional formatting and styling
* Financial model standards (color coding, number formats)
* Automatic formula recalculation with LibreOffice

**Critical principles:**

* Always use Excel formulas instead of hardcoded values
* Zero formula errors required (#REF!, #DIV/0!, etc.)
* Follow financial color coding standards (blue for inputs, black for formulas)
* Document all assumptions and data sources

[View XLSX Documentation →](/reference/xlsx)

## Common Workflows

### Document Creation

All document skills support creating files from scratch with professional formatting and styling.

### Editing Existing Files

DOCX and PPTX use XML-based editing workflows. XLSX uses openpyxl for preserving formulas and formatting.

### Converting Between Formats

Use skill-specific conversion tools (pandoc for DOCX, LibreOffice for PDF conversion, etc.).

### Quality Assurance

All skills include validation and verification steps to ensure professional output.