Note: this guide is only for app version 1.9 and later (check out About app)
You can easily import back recordings you made with any version of Audio Recorder Lite:
Install and open the latest available version of Audio Recorder Lite app
Tap Recordings button, give it permission to access storage if it asks – it will initialize folder structure: <storage>/Recorder (Note: for exact location lookup Location of Recordings in app's Settings)
Using a file manager app or a connected computer copy recording files you want to have to Audio Recorder Lite folder
Open the app again and tap Recordings – import will happen automatically.