C#/VB.NET: Converter Word em HTML

PM> Install-Package Spire.Doc

using Spire.Doc;
    
    namespace WordToHTML
    {
        class Program
        {
            static void Main(string[] args)
            {
                //Create a Document instance
                Document mydoc = new Document();
    
                //Load a Word document
                mydoc.LoadFromFile("sample.docx");
    
                //Save to HTML
                mydoc.SaveToFile("WordToHTML.html", FileFormat.Html);
            }
        }
    }

Imports Spire.Doc
    Namespace WordToHTML
        Class Program
            Shared Sub Main(ByVal args() As String)
                'Create a Document document
                Dim document As Document = New Document
                'Load a Word sample document
                document.LoadFromFile("sample.docx")
                'Save to HTML
                document.SaveToFile("toHTML.html", FileFormat.Html)
    
            End Sub
        End Class
    End Namespace