Message says ‘The format of the selected file is not supported’ every time. I’m using Windows 8.2 with Libre Office 18.104.22.168. The file is originally from Microsoft Powerpoint . ppt and the sound files I’m trying to insert are MP3. How do I insert my sound files? Do I need a different format?
Click on the menu “Insert : Audio or Video…”, then a File Dialog pops up where you can browse to your MP3 file. Select the MP3 file and then click on the “Open” button to insert it into your Impress slide.