What's new in PowerPoint 2013-45 - New from existing

Microsoft has removed the option to create a new presentation based on an existing one.

In PowerPoint 2010 and previous when you chose File - New - there was an option to choose New from existing.



PowerPoint 2010

Is there an alternative?
Yes, sort of, if your presentation is in the recent presentation list (File - Open - Recent) you can right click your file and choose Open a copy.