Etwas

I open the Editor like this -----------------------------

		IPath location = new Path("C:/Page_Test.xml");
		IFileStore fileStore = EFS.getLocalFileSystem().getStore(location);
		IWorkbenchPage page = Activator.getDefault().getWorkbench()
				.getActiveWorkbenchWindow().getActivePage();
		try {
			IEditorPart part = IDE.openEditorOnFileStore(page, fileStore);
		} catch (PartInitException e) {
			e.printStackTrace();
		}

My problem is -------------------------------------------

                Where can I configure the id of the editor the file is opened with