Files with cl file extension can also be found as source codes written in Common Lisp programming language.

There are 3 other file types using
the CL file extension!

empty - IconUtils mouse cursor library

empty - CLwin project

cl - QIP contact list

Detailed description

Software that open cl file

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CL file extension - Common Lisp programming language source code

What is cl file? How to open cl files?

File type specification:

Source code and script file type icon Source code and script file type

The cl file extension is associated with the Lisp (or LISP) programming language. Lisp is a family of computer programming languages that was  originally specified in 1958. Today, the most widely known general-purpose Lisp dialects are Common Lisp and Scheme.

The cl file contains source code written in Common Lisp programming language. It is a simple text file that can be opened in various text editors. However it is better to edit source code with text editors that support Common Lisp source code highlighting.

The default software associated to open cl file:

LispIDE picture or screenshot

LispIDE  Microsoft Windows software

Company or developer:

LispIDE is basic source code editor for several Lisp and Scheme implementations. LispIDE is able to work with: Corman Common Lisp, Steel Bank Common Lisp, CLISP, Gnu Common Lisp, Gambit Scheme, Bigloo Scheme etc.

GNU Emacs icon

Free Software Foundation, Inc. logoGNU Emacs  Linux/Unix software

Company or developer:
Free Software Foundation, Inc.

GNU Emacs is a popular, extensible and highly customizable text editor for Linux.

Help how to open:

Use any text editor to view the content of Common Lisp programming language source code files.

How to convert:

Source codes are usually not converted, but compiled.

List of software applications associated to the .cl 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 cl file, edit cl file, convert cl file, view cl file, play cl file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting cl files.

Software that open cl file - Common Lisp programming language source code

Programs supporting the exension cl on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open cl file action.

Microsoft Windows:

Main software associated with cl file by default:
Other suggested software:
NotePad++ text editor small icon NotePad++ text editor
Sublime Text small icon Sublime Text
Microsoft Windows NotePad small icon Microsoft Windows NotePad

Apple macOS / Mac OS X:


Main software associated with cl file by default:
GNU Emacs small icon GNU Emacs
Other suggested software:
gedit small icon gedit

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