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

empty icon.cls - ArcView geocoding classification

empty icon.cls - JavaScript class definition

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 - Microsoft Visual Basic 4 class module add-in

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

cls file icon: cls filetype icon

The cls file extension is associated with the Microsoft Visual Basic, an integrated development tool for Microsoft Windows operating system.

The cls file stores class module add-in for Visual Basic.

The default software associated to open cls file:

Microsoft Visual Basic icon

Microsoft Corporation logoMicrosoft Visual Basic  Microsoft Windows software

Company or developer:
Microsoft Corporation

Microsoft Visual Basic is programming language and integrated development environment for Microsoft Windows. Visual Basic is used to create Windows, Web, mobile, and Office applications.

Help how to open:

Use Visual Basic to work with *.cls files.

How to convert:

As far as we know, this .cls 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 .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's database).

Unspecified and all other actions for computer programs working with cls file - Microsoft Visual Basic 4 class module add-in

Click on the software link(s) for more information. Suggested software applications use cls file type for internal purposes and/or also by different way than common edit or open cls file actions.

Microsoft Windows:

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