A CPL file is a type of “system” file. It is used by the Windows operating system. A CPL file is short for Control Panel File. These files are binary files that open with the control panel in a Microsoft Windows operating system and are used to represent and open the tools available in the control panel, such as Mouse, Displays, Networking, amongst others. The CPL files are typically stored in the system folder on your device. These files should not be opened manually.
CPL File Format
Different CPL files in your Windows operating system are connected to represent different control panel items. All control panel items are linked to a CPL file and have the suffix “.cpl” attached to their items.
Some common types of CPL files with their formats are:
Inetcpl.cpl – For Internet properties on your device
Appwiz.cpl – To Add or Remove Programs properties on your device
Desk.cpl – For the Display properties
Main.cpl – For properties related to Mouse, Fonts, Keyboard, and Printers.
Netcpl.cpl – For Network related properties
System.cpl – For System related properties and to Add New Hardware wizard
TimeDate.cpl – For Date or Time properties
Mlcfg32.cpl – For Microsoft Exchange or Windows Messaging properties
Intl.cpl – This pertains to Regional Settings properties
Modem.cpl – For Modem related properties
Themes.cpl – Stores Desktop Themes and properties.
Password.cpl – For Password properties
Mmsys.cpl – For Multimedia properties
Wgpocpl.cpl – Pertains to Microsoft Mail Post Office
CPL file type was developed by Microsoft Windows and is an integral part of the Windows operating system since Windows 1.0. It is still used in all Windows versions, and all control panel item properties are stored using this file type.