 archive's central directory.</dd>
  <dt id="ZIP_FL_LOCAL"><a class="permalink" href="#ZIP_FL_LOCAL"><code class="Dv">ZIP_FL_LOCAL</code></a></dt>
  <dd>Return extra fields from the local file headers.</dd>
  <dt id="ZIP_FL_UNCHANGED"><a class="permalink" href="#ZIP_FL_UNCHANGED"><code class="Dv">ZIP_FL_UNCHANGED</code></a></dt>
  <dd>Return the original unchanged extra fields, ignoring any changes
    made.</dd>
</dl>
</div>
<p class="Pp" id="zip_file_extra_field_get_by_id">The
    <a class="permalink" hre