If you’ve come across the JAR file type online and wondered what it is, you’ve come to the right place. It’s a Java Archive file and here we’ll talk through what they contain and how to open them.
You might also encounter errors when trying to open a JAR file—we’ve got you covered with solutions for that too.
- Make sure you are updated with the latest Java Runtime Environment.
- Navigate to your Java installation folder, go inside the /bin/ folder, right click on Java.exe and set it to “Run as Administrator”.
- Press Windows + X keys and select “Command Prompt (Admin)” or Powershell (Admin) and type cmd.