FireFox下怎么导出table到Excel


比如有这么一个Table,FireFox下怎么将这个表格导出到Excel里？(后台是JAVA的SpringMVC,能不能不通过后台直接在前天用JS完成的)求指点：<table class="testT" border=1>
<tr>
<td colspan='5'>11</td>

</tr>
<tr>
<td  rowspan='4'>21</td>
<td>22</td>
<td>23</td>
<td>24</td>
<td>25</td>
</tr>
<tr>
<td>32</td>
<td>33</td>
<td>34</td>
<td>35</td>
</tr>
<tr>
<td>42</td>
<td>43</td>
<td colspan='2'>44</td>
</tr>
<tr>
<td>52</td>
<td>53</td>
<td rowspan='2'>54</td>
<td>55</td>
</tr>
<tr>
<td>61</td>
<td>62</td>
<td>63</td>
<td>65</td>
</tr>
</table>