Enter the "private sandbox folder" I've been using a voice recorded app on Android called "Parrot" that stores recordings to


  SD card\Android\data\com.SearingMedia.Parrot\files\parrot


I know they're here because when I select a recorded file from within the app, and press on details, it says


  File location: \data\user\0\com.SearingMedia.Parrot\files\parrot\Jun 09,063342.wav"


However, when I connect my phone to the computer, the folder is empty. The files work, as they can be heard when played from the app, but they just don't appear on the file explorer.

Now, I saw the developers wrote this as an answer to somebody asking the same:


  Hi David, Internal recorders are stored in a folder that is in a private sandbox folder which is inaccessible to other apps for security. You will need to share all of your tracks outside of the application. Long press on a row to start the multi-select tool then tap on all of your tracks. We suggest sharing using our SendAnywhere integration. 


I don't want to use these wireless methods. Is there any way at all that I could access these files on this protected folder, by merely connecting the phone to a computer?
You could use another sharing option such as Share to SD.  This will save the file locally on your device in a non-sandboxed location, and you will then be able to access it from your computer.