Bluestacks Android Emulator on Windows: Where are Tunein Radio Pro recordings located on the PC?

I want to access the recordings of TuneIn Radio Pro to tranfer to another mp3 player, I installed bluestacks, and installed TuneIn, it does play, It does record, after recording I turned off my internet, and the file played. which means it's on the computer somewhere, but I can't find it I'd like to transfer these audio files to my mp3 player.

Also can this app sink with another tablet so the files would be tranferred?

any of you programmers got an answer for me?

I can play, or delete by launching the Tunein app even offline, but I can't find the file on my pc that the tunein app is playing.