C# does have optional named parameters (see link below). But it is little help here as this is an old COM library for Excel. The documentation says named parame

C# does have optional named parameters (see link below). But it is little help here as this is an old COM library for Excel. The documentation says named parameters are not supported for this method, which is a COM interop limitation but not a limitation of the C# language. https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/classes-and-structs/named-and-optional-arguments https://docs.microsoft.com/en-us/dotnet/csharp/programming-g...