A daily updated filename extension database!

CLS file extension

The table below provides useful information about the .cls file extension. It answers questions such as:

  • What is the .cls file?
  • What program do I need to open a .cls file?
  • How can the .cls file be opened, edited or printed?
  • How can I convert .cls files to another format?

We hope you find this page helpful and a valuable resource!

3 extension(s) and 1 alias(es) found in database

✅ CLASS Group Abbreviation

.cls
CLASS Group Abbreviation .cls file icon
Description:
CLS isn't filename extension, it is the abbreviated name of release group. (iMMERSiON)
CLS format description not yet available
Category: Abbreviation files
Application: -
Mime-type: none
Magic number: -
Magic string: -
Sample: -
CLS aliases:
-
CLS related links:
-
CLS related extensions:
LOL Group Abbreviation

FAiRLiGHT Group Abbreviation

DEViANCE Group Abbreviation

iMMERSiON Group Abbreviation

RELOADED Group Abbreviation

Black Rider Group Abbreviation

Razor 1911 Group Abbreviation

Dagger Group Abbreviation

✅ Visual Basic Class Module

.cls
Visual Basic Class Module .cls file icon
Description:
CLS file is a Visual Basic Class Module. Dynamic data structures generally consist of at least some simple data storage (in our case, it will be a class module), along with a linkage to the next element in the structure.
Category: Development files
Application: Visual Basic
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
CLS aliases:
-
CLS related links:
-
CLS related extensions:
Visual Basic Project

Visual Basic PDW Script

Visual Basic Binary Property Page File

Visual Basic Property Page File

Visual Basic ActiveX Document Binary Form

Visual Basic Control TypeLib Cache

Visual Basic Control Licensing File

Visual Basic Wizard Launch File

Visual Basic WebClass HTML Template

Visual Basic Custom Control

✅ ArcInfo Geocoding Classification Data

.cls
ArcInfo Geocoding Classification Data .cls file icon
Description:
CLS file is an ArcInfo Geocoding Classification Data. ArcInfo is a complete and extensible geographic information system.
CLS format description not yet available
Category: GIS files
Application: ESRI ArcInfo
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
CLS aliases:
-
CLS related links:
-
CLS related extensions:
ArcInfo Binary Coverage

ArcInfo Band Interleaved by Line Image

ArcInfo Band Interleaved by Line Image

ArcInfo Band Sequential Image

ArcInfo ASCII Export

Geography Markup Language Document

MapInfo Table Document

FME Document

FME Feature Store

SIA dataMap GIS Export

✅ Java Class Data

.class
Java Class Data .class file icon
Description:
CLASS file is a Java Class Data. CLASS file contains bytecodes for the Java Virtual Machine. Java is a class-based, object-oriented programming language that is designed to have as few implementation dependencies as possible.
CLASS format description not yet available
Category: Application files
Mime-type: application/java-vm
Magic number: -
Magic string: -
Sample: -
CLASS aliases:
cla, clas, cls
CLASS related links:
-
CLASS related extensions:
Java Source Code

JRun Server Application

Java Enterprise Archive

BlackBerry COD Archive

Java Serialized Object

Velocity Macro File

JBuilder Project

JavaCard Converted Applet

Tag Library Descriptor

Java Network Launch Protocol Descriptor

Other types of files may also use the .cls file extension.

🚫 The .cls file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

c1s, cis, cks, cl, cl5, clc, cle, clw, clx, clz, cms, cos, cps, cs, csl

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Microsoft Excel Worksheet
Clarion Source Code
CineStyle Color Lookup Settings
IconUtils Cursor Library
Visual C# .NET Class
Lightscape Solution File
Windows CE ROM Image Checksum
CaseMap Case Script
Creator Fault List File
Lisp Source Code

🔴 Can't open a .cls file?

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

Windows cannot open this file:

example.cls

To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .cls file association, check the FAQ.

🔴 Can I change the extension of 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 the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .cls file extension, write to us!

Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
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