Go to the Publish tab
Clicking the top half of the button will immediately publish to PowerPoint based on your settings in options
Clicking the bottom half of the button will show one more item.
Options opens a window where you can configure the output. Please see the Options section below for more information
Options
Here are the different PowerPoint output layout options
By default only the first two are shown, if you would like to see the other options click Show More under the two options. You can always click Show Less to hide the extra options
Clicking on Advanced Settings will reveal options you can configure for the PowerPoint output
You can change the PowerPoint template here
You can configure publish settings here
Clicking the Publish button will your file to PowerPoint using your settings above