Public Overloads Sub GetCellA1Async( _
   ByVal sessionId As String, _
   ByVal sheetName As String, _
   ByVal rangeName As String, _
   ByVal formatted As Boolean _
) 

Dim instance As ExcelService
Dim sessionId As String
Dim sheetName As String
Dim rangeName As String
Dim formatted As Boolean
 
instance.GetCellA1Async(sessionId, sheetName, rangeName, formatted)

public void GetCellA1Async( 
   string sessionId,
   string sheetName,
   string rangeName,
   bool formatted
)