Basic information about CL file

When there is a problem with opening files with the file extension CL（*.CL or *.cl）, you do not need a computer expert. In most cases, using the helpful suggestions of experts contained in our website as well as appropriate programs, you can solve the problem with the CL file yourself.

There are 4 file types using the CL file extension in our database. In the further part of this page, you will find detail information about all the CL file with their brief description and a list of programs that support CL file sorted by operating systems. The table below provides useful information about the CL file extension. It answers questions such as:
  • What is the CL file?
  • How to open a CL file?
  • What programs do I need to open a CL file?
  • What programs help to create and edit a CL file?
  • How to convert CL files to another file format?
  • How to convert another files to CL file format?


1.Detail information about CL file extension: Common Lisp Programming Language Source Code File

File type Common Lisp Programming Language Source Code File Category Developer Files
Developer N/A File format N/A
Description CL file is a Common Lisp Programming Language Source Code File. 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.
Software programs that will open, edit or convert CL files

Windows		 LispIDE
NotePad++ text editor
Sublime Text
Microsoft Windows NotePad
LispIDE

macOS		 TextEdit

Linux		 GNU Emacs
gedit
GNU Emacs


2.Detail information about CL file extension: Cursor Library

File type Cursor Library Category Misc Files
Developer Aha-Soft File format Binary
Description CL file is a Cursor Library developed by Aha-Soft.
Software programs that will open, edit or convert CL files

Windows		 Aha-Soft IconUtils
Aha-Soft ArtIcons Pro


3.Detail information about CL file extension: CLwin Project File

File type CLwin Project File Category Data Files
Developer N/A File format N/A
Description CL file is a CLwin Project File.
Software programs that will open, edit or convert CL files

Windows		 CLwin


4.Detail information about CL file extension: QIP Contact List File

File type QIP Contact List File Category Settings Files
Developer N/A File format N/A
Description CL file is a QIP Contact List File.
Software programs that will open, edit or convert CL files

Windows		 QIP



Can't open a CL file?

When you click a file to open it, operating system examines the filename extension. If operating system recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When operating system does not recognize a filename extension, you receive the following message:

”Can't open this file: example.CL”。

To open this file, you install one of the applications from the list of software programs that you found here, you should be able to open, edit or convert the file with the CL extension without any issue.


Where I can download the application that support CL file?

If you do not know where you can download the application from our list, click on the link (which is the name of the program), you will find more information there on the location where to download the required application. Most often they are the websites of software manufacturers.


How to change file associations?

  • Right-click a file with the extension whose association you want to change, and then click "Open With".
  • In the "Open With" dialog box, click the program whith which you want the file to open, or click "Browse" to locate the program that you want.
  • Select the ”Always use the selected program to open this kind of file” check box.


Can I change the extension of CL files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read/open the file. The problem is, changing the file extension does not change the file format. Select a software program from our list and install it on your computer. If the file has not opened correctly, you have to look for a different software program from our list. Sometimes you have to repeat the operation several times.


What else may cause problems width open a CL file?

The reasons for the lack of the ability to open a CL file on your computer may be at least several. The easiest thing is to find a suitable application installed on your computer, which will open a CL file. If there is still something wrong, you might want to check:

  • Whether the CL file is damaged.
  • Whether the CL file is incorrectly linked in the registry entries.
  • Whether the CL file extension has been accidentally removed from the Windows registry.
  • Whether the installation of an application that supports the CL file format is incompletely.
  • Whether the CL file is infected.
  • Whether the drivers of the equipment used for opening a CL file are up to date.
  • Whether your computer has enough hardware resources to open a CL file.

If the CL file still not working with your software after eliminating the above shortcomings? That means that the problem is more complex and requires the help of a specialist.