alv table with tree inculding multiple hierarchy

Hi

need implement ALV with tree including multiple hierarchy levels.

root

  sublevel-1

     sublevel 1.1

        element

    sublevel-2

      sublevel 2.1

         sublevel 2.1.1

              element

is it possible, I was seen some example it contain only two level |http://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/c060fcb4-2c62-2b10-d2b2-f32407a5cc6f&overridelayout=true].

kindly suggest me. is it possible in standard table but export button(download the tree) is not there in standard table.

I was try with FPM also it was downloading as normal internal table.

downloading as tree only possible in ALV only , but implementing ALV with tree structure is not getting.

please it urgent.

Regards

Praveen Chetpally