XML Stack Overflow

I have a xml file like that:

<object>
 <first>23</first>
 <second>43</second>
 <third>65</third>
</object>
<object>
 <first>4</first>
 <second>3</second>
 <third>93</third>
</object>

And i like add the tag/label at the begining of xml file and at the end

Like this:

   <root>
    <object>
     <first>23</first>
     <second>43</second>
     <third>65</third>
    </object>
    <object>
     <first>4</first>
     <second>3</second>
     <third>93</third>
    </object>
   </root>

anyone know how to do?

Thanks! :)