PPTX Slide Viewer is an interactive tool to help step through the OpenXML source of slides located within a PPTX file.
This tool was built to help understand the PresentationML format to assist in developing pptx-canvas, a Python library that provides a Canvas like interface to drawing in PPTX.
This tools is made by Elliott Carlson, and is made available under the MIT license.
See http://elliottcarlson.github.io/pptx-viewer/ for a demo of the tool.
Drag and Drop a valid PPTX file in to the browser window to select the slide you want to inspect.