QUESTION Is this a pptx file or a ppt file?
Just under the playing time it should say "File" and then contained in presentation or the path to a link if it isn't embedded. Double clicking would usually play the sound if it is going to work.
If you just need to view the presentation I would suggest downloading the free 2010 PowerPoint Viewer.
https://www.microsoft.com/en-gb/down...ils.aspx?id=13