If you're a Google Drive user, it's worth installing the Sodaphonic drive add-on. The add-on allows you to open audio files from the Google Drive interface directly into Sodaphonic.
The Sodaphonic add-on is available via the G Suite Marketplace.
Once installed, find any mp3 or wav file in your drive then right-click to see the Open with context menu and a link for Sodaphonic. Clicking this will open a consent window to make sure you're ok with Sodaphonic accessing this file. Once you give your approval then your file will be open, ready for editing.