Content of setting files

Where can i find which settings are saved in those files:

CATPLMNewUIToolBoxPreferences.CATPreferences
MXLogon.CATPreferences
FrameGeneral.CATPreferences
VisInfiniteEnvironment_CustomEnv.CATPreferences
VPMEditor.CATPreferences
AfrToolbarVisibility.CATPreferences

Thank you a lot!