Popular Configuration file extension list:
.pcf - Cisco VPN Client configuration file
.ccf - OS/2 Multimedia Viewer configuration file
.sav - Configuration data file
.reg - Registry file for Windows
.plt - Bentley's CAD MicroStation plot driver configuration file
.tsk - Skin file for Windows Mobile
.pcf - Packaged collaboration files
file extension CFG - Configuration files
File extension CFG description:
CFG file extensions are used mostly for program configuration files. Usually is this file type common plain text file.In computing, configuration files, or config files, are used to configure the initial settings for some computer programs. They are used for user applications, server processes and operating system settings. The files are often written in ASCII (rarely UTF-8) and line-oriented, with lines terminated by a newline or carriage return/line feed pair, depending on the operating system. They may be considered a simple database. Some files are created and modified using an ASCII editor. Others are created and modified as a side-effect of changing settings in a graphical user interface (GUI) program.
.cfg