code: public boolean unXz(File srcFileToArchive, String destFilePath) {
          boolean success = true;
          try {
              XZUnArchiver XZUnArchiver = new XZUnArchiver();
              XZUnArchiver.enableLogging(new ConsoleLogger(ConsoleLogger.LEVEL_DISABLED, UN_ARCHIVER_LOGGER));
              XZUnArchiver.setSourceFile(srcFileToArchive);
              XZUnArchiver.setDestFile(new File(destFilePath));
              XZUnArchiver.extract();
          } catch (Exception e) {
              success = false;
              logger.warn("Failed to extract Xz file : {} - {}", srcFileToArchive.getPath(), e.getMessage());
          }
          return success;
      }
docs: extract xz files