code: public boolean dumpTo(File outFile) throws IOException {
          if (exists()) {
              dump(getOffset(), outFile);
              return true;
          } else {
              return false;
          }
      }
docs: Writes a dump of the overlay to the specified output location.
  
  @param outFile
  the file to write the dump to
  @return true iff successfully dumped
  @throws IOException
  if unable to read the input file or write the output file