private static string _createNewWord(string allTnC)
{
    Microsoft.Office.Interop.Word.Document wordDocument = null;
    Microsoft.Office.Interop.Word.Application wordApplication = null;
    string dateTimeNow = DateTime.Now.ToString();
    string wordPath = Path.GetTempFileName();
    wordApplication = new Word.ApplicationClass();
    object nothing = Missing.Value;
    wordDocument = wordApplication.Documents.Add(ref nothing, ref nothing, ref nothing, ref nothing);
    wordDocument.Paragraphs.Last.Range.Text = allTnC;
    object format = Word.WdSaveFormat.wdFormatDocumentDefault;
    wordDocument.SaveAs(wordPath, ref format, ref nothing, ref nothing, ref nothing, ref nothing, ref nothing, ref nothing,
 ref nothing, ref nothing, ref nothing, ref nothing, ref nothing, ref nothing, ref nothing, ref nothing);
    wordDocument.Application.Documents.Close(ref nothing, ref nothing, ref nothing);
    ((Word.ApplicationClass)wordApplication).Quit(ref nothing, ref nothing, ref nothing);
    return wordPath;
}
private static void _importTnCToActiveDocument(string wordPath)
{
    Word.Application wordApplication = new Word.Application();
    Word.Document wordDocument = new Word.Document();
    Object nothing = System.Reflection.Missing.Value;
    Object filePath = wordPath;
    wordApplication.Documents.Open(ref filePath, ref nothing, ref nothing, ref nothing, ref nothing, ref nothing, ref nothing, ref nothing, ref nothing, ref   nothing, ref   nothing, ref   nothing, ref   nothing, ref  nothing, ref   nothing, ref   nothing);
    wordDocument = wordApplication.ActiveDocument;
    wordApplication.Visible = true;
}

ViteRibbon viteRibbon = new ViteRibbon(this.Application);

currentDoucment = wordApp.ActiveDocument;