File Extension CTL

File type: Visual Basic User-defined Control File

About the CTL file type:

If Windows cannot find the appropriate program associated with .CTL files, then your registry may have errors. Check your Windows registry for errors (includes file association errors).

The .CTL file extension identifies a Visual Basic User-defined Control file which identifies the file as belonging to the Microsoft Visual Studio development environment and may contain Visual Basic library code. This application can be used to compile a working executable or utility within Microsoft Windows.

Additional Information:
The .CTL file extension also identifies dBase IV Control files.