There are 9 other file types using
the CTL file extension!

empty icon.ctl - dBASE IV Aldus setup control data

ctl icon.ctl - Visual Basic control data (Active X control data)

empty icon.ctl - StepMania SMZIP package description file

empty icon.ctl - EditPlus cliptext file

empty icon.ctl - IBM Lotus Notes 5 thesaurus file

empty icon.ctl - PDP-10 batch file

empty icon.ctl - Shape Pro control points data

empty icon.ctl - EAGLE Autorouter Control file

empty icon.ctl - LabVIEW control data

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CTL file extension - Certifcate trust list

What is ctl file? How to open ctl files?

File type specification:

Internet related file type icon Internet related file type

The ctl file extension is related to Certificates used in Windows Operating system.

The ctl file contains saved list of trusted certificates.

These files can be possibility dangerous and be used as an exploit by remote attacker to trick victim into installing the attacker as a trusted publisher.

Updated: February 26, 2019

The default software associated to open ctl file:

Microsoft Windows icon

Microsoft Corporation logoMicrosoft Windows  Microsoft Windows software

Company or developer:
Microsoft Corporation

A family of operating systems developed by the Microsoft Corp. The first Windows was released in 1985 as a GUI add-on to MS-DOS.  MS-DOS based Windows versions were developed to 2000, when was released the last version called Windows ME. Windows based on NT core started in 1993. Windows NT family are developed to these days, the latest version is called Windows 10.

Help how to open:

Probably not meant to be accessed by the user.

How to convert:

Probably cannot be converted to anything else.

List of recommended software applications associated to the .ctl file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open ctl file, edit ctl file, convert ctl file, view ctl file, play ctl file etc. (if exist software for corresponding action in File-Extensions.org's database).

Unspecified and all other actions for computer programs working with ctl file - Certifcate trust list

Click on the software link for more information about Microsoft Windows. Microsoft Windows uses ctl file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).

Microsoft Windows:

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