@Override
          public boolean isFileVisible(VirtualFile file, boolean showHiddenFiles) {
            return super.isFileVisible(file, showHiddenFiles) &&
                   (file.isDirectory() || "xml".equals(file.getExtension()) || FileTypeRegistry.getInstance().isFileOfType(file, ArchiveFileType.INSTANCE));
          }
@Override
          public boolean isFileVisible(VirtualFile file, boolean showHiddenFiles)