範例：下拉式方塊

<region id="ID0EETDPB" actualWidth="226.36666666666667" actualHeight="44.2" top="38.400000000000006" left="19.200000000000003" xml:lang="zh_TW" xmlns="http://schemas.mathsoft.com/worksheet50">
  <math resultRef="3" xml:lang="zh_TW">
    <define xml:lang="zh_TW" xmlns="http://schemas.mathsoft.com/math50">
      <matrix rows="2" cols="1" xml:lang="zh_TW">
        <id labels="VARIABLE" xml:space="preserve" xml:lang="zh_TW">Young</id>
        <id labels="VARIABLE" xml:space="preserve" xml:lang="zh_TW">Shear</id>
      </matrix>
      <ComboBoxControl rows="3" cols="2" SelectedRow="0" ComboBoxPrefix="Metal" xml:lang="zh_TW">
        <ComboBoxRowNames xml:lang="zh_TW">
          <rowName xml:lang="zh_TW">Aluminium</rowName>
          <rowName xml:lang="zh_TW">Gold</rowName>
          <rowName xml:lang="zh_TW">Platinum</rowName>
        </ComboBoxRowNames>
        <ComboBoxScaleFactors xml:lang="zh_TW">
          <id xml:space="preserve" xml:lang="zh_TW">GPa</id>
          <id xml:space="preserve" xml:lang="zh_TW">GPa</id>
        </ComboBoxScaleFactors>
        <ComboBoxValues xml:lang="zh_TW">
          <real xml:lang="zh_TW">70</real>
          <real xml:lang="zh_TW">26</real>
          <real xml:lang="zh_TW">79</real>
          <real xml:lang="zh_TW">27</real>
          <real xml:lang="zh_TW">168</real>
          <real xml:lang="zh_TW">61</real>
        </ComboBoxValues>
      </ComboBoxControl>
    </define>
  </math>
</region>