XML : Split XML and maintain header

I have a large XML file that I need to split and maintain some header details. Please see example below.

  Original  <ArticleExportPackage>       <PackageInfo>            <License>1234</License>       </PackageInfo>            <ItemInfo>            <ItemID>ABC123>       </ItemInfo>       <ItemInfo>            <ItemID>BCD123>       </ItemInfo>  </ArticleExportPackage>    

After split:

  #1  <ArticleExportPackage>       <PackageInfo>            <License>1234</License>       </PackageInfo>            <ItemInfo>            <ItemID>ABC123>       </ItemInfo>  </ArticleExportPackage>    #2  <ArticleExportPackage>       <PackageInfo>            <License>1234</License>       </PackageInfo>            <ItemInfo>            <ItemID>BCD123>       </ItemInfo>  </ArticleExportPackage>    

Any guidance given is much appreciated!