Motorola V635

When I try to add songs in my audio folder I noticed that the .mix file is gone. Now when I try to play new uploads on my phone the songs are corrupt ☹️ . Could someone be kind enough to please copy their .mix file or whatever it's called in the audio folder (the audio folder when you connect your phone to the computer) and send it to ohtim@msn.com or post it here.
that would be greatly apreciated. thank you