File Error in MixPad Posted November 11, 2018 · Report reply Hi. I probably did a mistake because i was working on a project in Mixpad. When i was done i saved the file as file type .mp3 by mistake. now i have a file and an app in the desktop and when i try too open the app in desktop in mixpad but i cant. in the other file there is alot of files type 0.aud 0.grf 1.aud 1.grf 1.aud 1.grf1.aud 1.grf and i cant open them. Can i get any help ?