How to generate scene and meshxml files?

I found it's very convenient to support the import of formats of scene and meshxml files in JME3, and the model effect imported was good too. I want to know what tools the scene or mesxml files are made with. I

You can create .mesh.xml and .scene files by exporting a model from blender with the Blender OgreXML exporter. Documentation for the exporter is available as a help button in the plugin itself and also here.

I found it's very convenient to support the import of formats of scene and meshxml files in JME3, and the model effect imported was good too. I want to know what tools the scene or mesxml files are made with. I