How do I import audio properly?

I've imported multiple sounds into the sounds folder and when I try to add an audio event there are none of the sounds in the dropdown, instead it says < none - import some audio files first > am I missing a step here? Thanks.

I've imported multiple sounds into the sounds folder and when I try to add an audio event there are none of the sounds in the dropdown, instead it says < none - import some audio files first > am I missing a step here? Thanks.

have you imported in "Sounds" / "Music" folders or in "Files" folder?