There are 7 other file types using
the CLS file extension!

empty icon.cls - ArcView geocoding classification

cls icon.cls - Microsoft Visual Basic 4 class module add-in

cls icon.cls - Microsoft Visual C++ class definition

cls icon.cls - AIM AOL Instant Messenger data

empty icon.cls - SQLite 3 data format

empty icon.cls - LaTeX data

empty icon.cls - Java class definition

CLS file extension - JavaScript class definition

What is cls file? How to open cls files?

File type specification:

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

File extension cls is related to JavaScript, a scripting language most often used for client-side web development. It was the originating dialect of the ECMAScript standard.

It is a dynamic, weakly typed, prototype-based language with first-class functions. JavaScript was influenced by many languages and was designed to look like Java, but be easier for non-programmers to work with.

A .cls file contains JavaScript class definitions.

The default software associated to open cls file:

Sublime Text icon

Sublime Text  Microsoft Windows software

Company or developer:
Sublime HQ Pty Ltd

Sublime Text is advanced text editor used to write source codes in various programming languages. It is a great tool for programmers and offers great feature and performance. It is available for Microsoft Windows, Mac OS X and Linux operating systems.

Help how to open:

Use any text editing tool or source code editor to view content of *.cls files.

How to convert:

There is no way how to convert *.cls files to other formats.

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

Hint:
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 cls files.

Software that open cls file - JavaScript class definition

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

Microsoft Windows:

Main software associated with cls file by default:
Sublime Text small icon Sublime Text
Other suggested software:
NotePad++ text editor small icon NotePad++ text editor
PSPad small icon PSPad

Apple macOS / Mac OS X:

Previous file extension
CLP file extension

File-Extensions.org > Source code and script file types

Next file extension
file extension CLS

 

Enter any file extension without dot (e.g. pdf)
Search for file extension details and associated application(s)

RSS feed