title: Creating a power-point file reader ( pptx )
body: <p>I'm looking for an open-source pptx reader (preferred in C# ) to modify it and put it into a 3D engine ( customer request ), or at least a tutorial on the basics. I already searched on google but can't find any useful resources.</p>
  <p>I know it's possible to create a new reader by reading the pptx files documentation ( ECMA ), but this seems to be a huge project anyway and I would prefer if I'm able to build this component on some existing code.</p>