Invalid DOCX file generated by basic Word example (Openize.Words)

[dargereflorent-beep]

The simplest example of creating and saving a Word document (.docx) using the Openize.Words v25.7.0 library generates a file that is not recognized as valid by Microsoft Word (and other DOCX readers).

using System.Windows.Forms;
using Openize.Words;

namespace TestOpenize
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

            // 1. Créer une instance de Document.
            Document doc = new();

            // 6. Sauvegarder le Document sur le disque.
            doc.Save(@"C:\Temp\Docs.docx");
        }
    }
}