How to convert vba macro function into c#.net code

Hi,

Could you please help me out regarding how to convert the code from vba macro to c#.net 3.5

Private Type Struct_XYZ
  CellID As Long
  P_Pos(1 To 3) As Double
  W_IDs(1 To Max_Num_XYZ) As Long
  W_Vectors(1 To 3, 1 To Max_Num_XYZ) As Double
  W_Distance(1 To Max_Num_XYZ)
  Shortest As Double
  W_Vector_Shortest(1 To 3) As Double
  W_ID_Shortest As Long
  Number_of_XYZ As Integer
End Type

Thanks you in advance.