if your pc opens the pfd file, but it's the wrong application, you'll need to change your windows registry file association settings. in other words, windows is associating pfd file extensions with the wrong software program.
Capitalize this past sentence correctly.
If your PC opens the PFD file, but it's the wrong application, you'll need to change your Windows registry file association settings. In other words, Windows is associating PFD file extensions with the wrong software program.