pptx

pptx is the file format used by Microsoft PowerPoint presentations. It is part of the Office Open XML standard and replaced the binary PPT format beginning with PowerPoint 2007. A pptx file uses the .pptx extension and is a zipped package containing XML documents and other resources that describe slides, layouts, and media.

Inside the ZIP package, the content is organized as a set of XML files and relationships. Key components include document.xml for slide content, slideN.xml for individual slides, and presentation.xml that defines the overall presentation. The package also contains slide masters, layouts, themes, and media assets, with metadata and relationships described in folders such as _rels and the [Content_Types].xml descriptor. This structure enables layered formatting, styling, and cross-referencing of elements within the file.

Macros are not stored in pptx files; macro-enabled versions use the .pptm extension. PPTX supports text formatting, images, charts, embedded objects, animations, and transitions, along with themes and master slides. Being based on Office Open XML, the format is designed for interoperability and data extraction across applications that implement the standard.

Compatibility and usage: PowerPoint can create, edit, and save pptx files, and many other applications such as Google Slides, LibreOffice Impress, and Apple Keynote can import and export pptx, though some advanced features or effects may not transfer perfectly. The format is defined in the ECMA-376 Office Open XML specification and the ISO/IEC 29500 standard, and is associated with the MIME type application/vnd.openxmlformats-officedocument.presentationml.presentation.