If you do not have Microsoft PowerPoint, you may view the slideshow using the free PowerPoint viewer available at http://office.microsoft.com/en-us/powerpoint-help/install-and-run-powerpoint-viewer-2007-HA010096695.aspx.
Once you open the file, select Slideshow from the top menu, and then select “From beginning.” Once the slideshow begins, it will progress automatically. The original slide show had music, and I worked for hours to try to get the music to post, without success. Sorry that part is missing in WordPress.
Deb's Blog 