Public Overloads Function OpenExcel( _
   ByVal stream As Stream, _
   ByVal password As String _
) As Boolean

Dim instance As FpSpread
Dim stream As Stream
Dim password As String
Dim value As Boolean
 
value = instance.OpenExcel(stream, password)

public bool OpenExcel( 
   Stream stream,
   string password
)

string f;
f = "D:\\formula1.xls";
System.IO.FileStream s = new System.IO.FileStream(f, IO.FileMode.Open, IO.FileAccess.ReadWrite);
FpSpread1.OpenExcel(s, "test");

Dim f As String
f = "D:\formula1.xls"
Dim s As New System.IO.FileStream(f, IO.FileMode.Open, IO.FileAccess.ReadWrite)
FpSpread1.OpenExcel(s, "test")