Returns the sum of complex numbers.
This method doesn't have any parameters.
builder.CreateFile("xlsx"); var oWorksheet = Api.GetActiveSheet(); var oFunction = Api.GetWorksheetFunction(); oWorksheet.GetRange("A1").SetValue(oFunction.IMSUM("1+3i", "0.1+1.5j", "-2+2.5i")); builder.SaveFile("xlsx", "IMSUM.xlsx"); builder.CloseFile();