How to run a JAR file in Windows 11/10 Since Java or JAR files can’t run on Windows on their own, you need to install the Java Framework or what is popularly called Java.

A JAR file is an archive file but is more than a file compression format. Here's how to open, run, or execute JAR files.

How do I open a Java JAR file? Follow these steps to open a JAR file and extract the contents to the local filesystem: Change the extension of the JAR file from .jar to .zip Right-click on the JAR ...