Convert VAB macro code to C# code

Option Explicit

Sub CopyRow()

Dim i As Integer

Dim lRow As Long, nextRow As Long

lRow = Sheets("Document List").Cells(Rows.Count, "R").End(xlUp).Row

For i = 1 To lRow

If InStr(1, LCase(Range("R" & i)), "n") <> 0 Then

nextRow = Sheets("Sheet1").Range("A" & Rows.Count).End(xlUp).Row + 1

Range("A" & i & ":H" & i).Copy Destination:=Sheets("Sheet1").Range("A" & nextRow)

End If

Next i

End Sub

Please help me converting this VBA code to C#.

Whatever contents are getting extracted from the excel sheet needs to be mailed via outlook 2007