Returns a range that describes the frozen cells in the active worksheet view.
This method doesn't have any parameters.
builder.CreateFile("xlsx");
Api.SetFreezePanesType("column");
var oWorksheet = Api.GetActiveSheet();
var oFreezePanes = oWorksheet.GetFreezePanes();
var oRange = oFreezePanes.GetLocation();
oWorksheet.GetRange("A1").SetValue("Location: ");
oWorksheet.GetRange("B1").SetValue(oRange.GetAddress());
builder.SaveFile("xlsx", "GetLocation.xlsx");
builder.CloseFile();