title: How to create PowerPoint office 2013 addin something similar to .ppa file
body: <p>One the requirements in my project is to migrate existing PowerPoint 2003/2007 Add-ins (written in macro) to PowerPoint 2013. I don't find an option to save file in .ppa (office 2013 version). </p>
  
  <p>I am pretty new to add-ins and macro code. Can anyone please help me with this? </p>