Oh how interesting. I needed to extract a video from PowerPoint, and I discovered that all Office documents—XLSX, DOCX, PPTX—are stored as ZIP archives with folders inside, where media files and XML configuration are neatly organized. To extract all media files from any of these files, one simply needs to unzip the archive and peek into one of the folders.
This immediately opens up huge possibilities—for instance, one could transfer styles, footers, and headers from one document to another in one fell swoop, by simply copying. There’s also a separate ‘numbering’ file; it’s always troublesome. Word can do it too, but it’s somewhat glitchy there.
