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