Koala can open most types of audio file, including mp3's and AAC format.

The easiest way to do that is this:

1. Find the audio file in any app on your phone. Almost all apps are supported, including Files, DropBox, Google Drive, Mail, Voice Memos etc etc.

2. Press the share button. Sometimes it's a little hard to find, but usually looks like a box with a little arrow going upwards

3. Press "Open in Koala"

4. Tadddahh!! Your file is now imported.

You can also use an app called AudioCopy (free) or another highly recommended one called AudioShare (costs $3.99 in US)

If you get stuck, please ask us here for help. We usually get back to all queries within a day.