code: private ProjectFile handleMDBFile(InputStream stream) throws Exception
     {
        File file = InputStreamHelper.writeStreamToTempFile(stream, ".mdb");
  
        try
        {
           Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
           String url = "jdbc:odbc:DRIVER=Microsoft Access Driver (*.mdb);DBQ=" + file.getCanonicalPath();
           Set<String> tableNames = populateTableNames(url);
  
           if (tableNames.contains("MSP_PROJECTS"))
           {
              return readProjectFile(new MPDDatabaseReader(), file);
           }
  
           if (tableNames.contains("EXCEPTIONN"))
           {
              return readProjectFile(new AstaDatabaseReader(), file);
           }
  
           return null;
        }
  
        finally
        {
           FileHelper.deleteQuietly(file);
        }
     }
docs: We have identified that we have an MDB file. This could be a Microsoft Project database
  or an Asta database. Open the database and use the table names present to determine
  which type this is.
  
  @param stream schedule data
  @return ProjectFile instance