Iterate over a tree and get items in C#

Hi all,

i have a tree and try to get the items how could i get it inside a loop.
These items will be inserted ito excel cells.
Hard time for me as a python nub to understand the TYPE of the tree item.


for (int i = 1 ; i <= 1 ; i++)
      for (int r =   ; r <= 12 ; r++)
       myItem = Table.Branch(i)[r]  // how i get the item 

Thanks for help