Remove the audio narration from a PowerPoint presentation

Save your .ppt or .pptx file as "web page" (.htm,.html) with a new name. PowerPoint will create a file with the new file name, and an .htm extension. It will also create a new folder, called yourfilename_files, containing all the embedded objects including sounds in your presentation. Open this newly created folder and you will see all the audio files listed. If your file is in .pptx format, you can also rename it as filename.pptx.zip and you can browse the sound and image files inside the zip file.

Edit: For Mac, you can use File Juicer to extract sounds from your PowerPoint file. See the relevant page for more info.

This will change the default language for a given presentation:

With ActivePresentation .DefaultLanguageID = msoLanguageIDEnglishAUS End With

It will not change any already-inserted text but any text added afterwards will be set to the default language.

There's a "gotcha" you'll want to be aware of. While the name of the property suggests that this code will only affect the active presentation, it actually sets the default language for this AND ANY NEW PRESENTATIONS YOU CREATE until you change the language back to whatever it was before.