It seems like you want to open JavaFX, which is a Java library for building desktop applications with a graphical user interface (GUI). To work with JavaFX, you’ll typically need to create a Java project and include the JavaFX library in your project. Here’s a general outline of how you can open JavaFX:

1. Install Java: Ensure you have Java Development Kit (JDK) installed on your computer. JavaFX is included with Oracle JDK until JDK 8, and starting from JDK 11, it’s available as a separate module.

2. Create a JavaFX Project: Use an Integrated Development Environment (IDE) like Eclipse, IntelliJ IDEA, or NetBeans to create a new JavaFX project. If you’re using a command-line tool, you can create a project manually.

3. Configure JavaFX: Make sure that your project is configured to use JavaFX libraries. This typically involves adding the JavaFX SDK or module to your project’s build path or module path.

4. Write JavaFX Code: Start writing Java code to create your JavaFX application. You’ll define your application’s user interface, including windows, buttons, and other GUI components.

5. Run the Application: Run your JavaFX application through your IDE or by using the command-line tools provided by Java. This will launch your JavaFX application, and you’ll be able to interact with the GUI you’ve created.

If you have a specific question or issue related to working with JavaFX, please provide more details, and I’d be happy to assist you further.