code: private static void listProjectProperties(ProjectFile file)
     {
        SimpleDateFormat df = new SimpleDateFormat("dd/MM/yyyy HH:mm z");
        ProjectProperties properties = file.getProjectProperties();
        Date startDate = properties.getStartDate();
        Date finishDate = properties.getFinishDate();
        String formattedStartDate = startDate == null ? "(none)" : df.format(startDate);
        String formattedFinishDate = finishDate == null ? "(none)" : df.format(finishDate);
  
        System.out.println("MPP file type: " + properties.getMppFileType());
        System.out.println("Project Properties: StartDate=" + formattedStartDate + " FinishDate=" + formattedFinishDate);
        System.out.println();
     }
docs: Reads basic summary details from the project properties.
  
  @param file MPX file