An executable file for MediaTek's MRE (MAUI Runtime Environment) , which is the default platform for many newer feature phones like the Nokia 225, 215, and 3310 (2017). Method 1: Using Java Launcher (Recommended Offline Tool)

You may need to decompile the original JAR into source code using a tool like JD-GUI.

Click the "Create" or "Compile" button to generate the new file. Method 2: Online Conversion Services

Open the software and load the .jar file you wish to convert.

Re-compile the application resources specifically for the MRE platform to ensure all hardware calls (screen resolution, button mapping) are correct. Critical Step: Signing the VXP File JAR File Overview

Set up the MRE SDK on a compatible Windows environment.

One of the most accessible ways to attempt this conversion is through specialized wrapper software like . Download: Obtain Java Launcher from a verified source.

Websites like FileProInfo allow you to upload a JAR or JAD file and convert it to VXP.