@@ -70,6 +70,10 @@ return nil
 	})
 }
 
+func (f *FilesOutput) Open(filename string) (io.ReadCloser, error) {
+	return os.Open(filepath.Join(f.outputDirectory, filename))
+}
+
 func (f *FilesOutput) OutputToFile(output io.Reader, filename string) error {
 	fn := path.Join(f.outputDirectory, filename)
 	if err := f.mkdirp(filepath.Dir(filename)); err != nil {