Opening CLASS files

Did your computer fail to open a CLASS file? We explain what CLASS files are and recommend software that we know can open or convert your CLASS files.

What is a CLASS file?

Files that contain the .class file extension are primarily associated with files that have been written in the Java programming language. These files are compiled bytecode class applications. They are created by compiling different Java source code files.

The different Java source code files are compiled together to create the resulting CLASS file, which is then loaded into the Java Virtual Machine. At that point, the Java Virtual Machine executes the application that the code has been written for.

It is important to note that because there are different versions of the Java Virtual Machine, not all CLASS files will be compatible with each version.

Try a universal file viewer

In addition to the products listed above, I would suggest that you try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and very likely yours too! Download Free File Viewer.

By Prof. Jones (The File Expert)

Chief Content Editor and File Expert

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