- Create a shared folder on your SkyDrive account. It's free so there's no cost to you.
- Put your presentation in the shared location. You should now see you presentation in the list of files under the shared folder.
- Click on the "i" icon on the right side of the document. A right panel will appear.
- Under Share click on the Embed link and then copy the iframe and paste this into your blog. In the case of Blogger I just clicked on the Edit HTML tab in the compose window and pasted it into there and then it appeared below.
That's all you need to do. This is using the free PowerPoint Web Application and is much better then generating HTML from PowerPoint and trying to get it to work within one's web page.