return errors.New("cannot combine --data and --combine")
		}
		// file / version / file
		filemap := make(map[string]map[string]string)
		// versionID ->
		combineFiles := make(map[string][]string)
		decode := func(r io.Reader, file string) ([]byte, error) {
			file = strings.ReplaceAll(file, ":", "_")
			b, err := io.ReadAll(r)
			if err != nil {
				return nil, err
			}
			b, _, minor, err := checkXL2V1(b)

						return err
					}

					dec := json.NewDecoder(buf)
					// Use number to preserve integers.
					dec.UseNumber()
					var htr map[string]interface{}
					if err = dec.Decode(&htr); err != nil {
						return err
					}
					ht[file.Name] = htr
				}
			}
			b, err := json.MarshalIndent(ht, "", "  ")
			if err != nil {
				return err
			}
			fmt.Println(string(b))