Use PDF or XPS format to help preserve the formatting in your file or to share the file with other people.
Save your PowerPoint 2013 presentations to SkyDrive.
Save Office files as XPS without needing additional software or add-ins.
The new 2007 Microsoft Office system file format is called Open XML Formats and applies Word, Excel, and PowerPoint. What do you want to do? Save a file for use in Office 2003
Save your presentation so you don't lose all your hard work, then print it to share it with others.