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CLASS file extension

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

  • What is the .class file?
  • What program do I need to open a .class file?
  • How can the .class file be opened, edited or printed?
  • How can I convert .class files to another format?
  • Where can I find the specifications for .class?
  • Which MIME-type is associated with the .class extension?

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

1 extension(s) and 0 alias(es) found in database

.class file extension details

Java Class

.class
Java Class .class file icon
Description:
CLASS files contain bytecodes for the Java Virtual Machine, Tthey are normally produced by a compiler for the Java programming language.
Category: Application files
Mime-type: application/java-vm
Magic number: -
Magic string: -
Sample: -
CLASS aliases:
cla, 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 .class file extension.

.class file extension error

The .class file extension is often given incorrectly!

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

clas
open .class file

Can't open a .class 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.class

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 .class file association, check the FAQ.

.class file extension

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 .class file extension, write to us!

.class file extension

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