OOXML Parsing Reference
A .pptx is an Open Packaging Conventions ZIP archive. Resolve its relationship graph; do not assume sequential filenames.
| Need | Parts |
|---|---|
| Slide order | ppt/presentation.xml, ppt/_rels/presentation.xml.rels |
| Slide text and shapes | Slide parts resolved from presentation relationships (commonly ppt/slides/slideN.xml) |
| Layout, notes, images, charts | ppt/slides/_rels/slideN.xml.rels |
| Template geometry | ppt/slideLayouts/, ppt/slideMasters/ |
| Colors and fonts | Theme parts resolved from presentation/master relationships (commonly under ppt/theme/) |
| Notes and comments | ppt/notesSlides/, ppt/comments/ |
| Media and embeddings | ppt/media/, ppt/embeddings/ |
Use PresentationML, DrawingML, Office relationship, and package relationship namespaces. A read-only result should retain slide number, resolved relationship target, concatenated text, shape counts, notes, relationship types, and OOXML-only markers. Preserve theme tokens when a color uses scheme or system values rather than inventing a resolved RGB value.