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name: pptx description: "Presentation creation, editing, and analysis. When Claude needs to work with presentations (.pptx files) for: (1) Creating new presentations, (2) Modifying or editing content, (3) Working with layouts, (4) Adding comments or speaker notes, or any other presentation tasks"

PPTX Presentation Skill

Core Capabilities

Reading & Analysis: Extract presentation text via markdown conversion or access raw XML for detailed content like speaker notes, comments, and design elements.

Creating Presentations: Two approaches:

• Building from scratch using HTML-to-PowerPoint conversion
• Using existing templates by duplicating, reordering, and replacing content

Editing Existing Files: Modify by unpacking OOXML structure, editing XML, validating, and repacking.

Key Workflows

Text Extraction

Copypandoc presentation.pptx -o output.md

Creating from HTML

1. Design slides in HTML with proper dimensions
2. Convert to PowerPoint format
3. Apply design principles and color palettes

Template-Based Development

1. Analyze existing template inventory
2. Duplicate and rearrange slides
3. Replace content while preserving formatting

Editing Existing Files

1. Unpack: python unpack.py presentation.pptx output_dir/
2. Edit XML files in ppt/slides/
3. Validate: python validate.py output_dir/
4. Pack: python pack.py output_dir/ new_presentation.pptx

Color Palettes

Example palettes available:

• Classic Blue
• Teal & Coral
• Bold Red
• Modern Minimalist
• Earth Tones
• And 13 more...

Technical Tools

• unpack.py - Decompress PPTX
• validate.py - Check XML validity
• pack.py - Recompress to PPTX
• thumbnail.py - Generate visual grids
• rearrange.py - Slide ordering
• inventory.py - Text extraction
• replace.py - Content updates