| 
         | 
    ||
        
  | 
    
What about adding an "n" field to your table?
print(String)  --> local Table = {}
                   Table[1]={}
                   Table[1][1]=20
                   Table[1][8]=10
                   Table[2]=nil
                   Table[3]=""
                   Table[4]=true
                   Table[5]=false
                   Table.n = 5             --<<<<<<
                   return unpack(Table)
-- Roberto