if your pc opens the aif file, but it's the wrong application, you'll need to change your windows registry file association settings. in other words, windows is associating aif file extensions with the wrong software program.
Repeat this setence, but with the correct capitalization.
If your PC opens the AIF file, but it's the wrong application, you'll need to change your Windows registry file association settings. In other words, Windows is associating AIF file extensions with the wrong software program.