Download excel file from SSRS using RS

rs -i RSDownloadFile.rss -s http://localhost/reportserver

-------->8 RSDownloadFile.rss 8< --------

Public Sub Main()
Dim fileName as String = "Refreshable_Pivot.xlsx"
Dim strResourcePath as String = "/TestFolder/Refreshable_Pivot.xlsx"

'Dim rs As New ReportingService
Dim myByteArray() As Byte
myByteArray = rs.GetResourceContents(strResourcePath, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")

' Open a file stream and write out the report
Dim stream As FileStream = File.OpenWrite(fileName)
stream.Write(myByteArray, 0, myByteArray.Length)
stream.Close()
End Sub