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 - Certifcate trust list

empty icon.ctl - EditPlus cliptext 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

CTL file extension - IBM Lotus Notes 5 thesaurus file

What is ctl file? How to open ctl files?

File type specification:

Various data file type icon Various data file type

The CTL file extension is associated with IBM Lotus Notes email, calendaring, contacts management, to do tracking, instant messaging, an office productivity suite. The .ctl file stores various data used for internal purposes of IBM Lotus Notes.

The default software associated to open ctl file:

IBM Notes (Lotus Notes) icon

IBM logoIBM Notes (Lotus Notes)  Microsoft Windows software

Company or developer:
IBM

IBM Notes (formerly Lotus Notes) is a multi-user client-server cross-platform application runtime environment for Lotus Domino/Notes suite. It can be used for many applications as well as for internal communication collaborative applications, including e-mails, calendaring, PIM, instant messaging, Web browsing, and a variety of feature-rich custom applications. It can be used to access both local- and server-based applications and data.

The current version of IBM Notes is 9.

Help how to open:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert:

As far as we know, this .ctl file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

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 - IBM Lotus Notes 5 thesaurus file

Click on the software link for more information about IBM Notes (Lotus Notes). IBM Notes (Lotus Notes) 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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