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Video: Save, publish, and share - Office.com
Save your file either to your computer, or to an online service like SkyDrive. Then find out how to share it with others, even if they have an older version.
Save and share a PowerPoint presentation to Microsoft SkyDrive - PowerPoint - Office.com
Save your PowerPoint 2013 presentations to SkyDrive.
Print, share, and protect files in the PDF and XPS file formats - PowerPoint - Office.com
Use PDF or XPS format to help preserve the formatting in your file or to share the file with other people.
Video: Save a PowerPoint presentation - Office.com
Save your presentation so you don't lose all your hard work, then print it to share it with others.
Save as XPS - PowerPoint - Office.com
Save Office files as XPS without needing additional software or add-ins.