What is .CPL file extension?
Control panel item, such as Displays, Mouse, Sound, or Networking, used by the Windows operating system; stored in the "Windows\ System" folder and are loaded automatically when the Windows Control Panel is opened.
Since CPL files are referenced by the Windows operating system, they should not be opened manually.
You can see a list of software programs here on easyfileopener.org that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.