WordprocessingDocument wordprocessingDocument = WordprocessingDocument.Open(filePath, true);

            Body body = wordprocessingDocument.MainDocumentPart.Document.Body;

            String message = string.Empty;

            ExtendedFilePropertiesPart appPart = wordprocessingDocument.ExtendedFilePropertiesPart;

            Manager = appPart.Properties.Manager.InnerText;

            if (Manager != null)

                message = "Manager : " + Manager + "\n";

            //Access company property

            Company = appPart.Properties.Company.Text;

            if (Company != null)

                message += "Company : " + Company + "\n";

            CoreFilePropertiesPart corePart = wordprocessingDocument.CoreFilePropertiesPart;

            XmlDocument xmlProperties = new XmlDocument();

            xmlProperties.Load(corePart.GetStream());

            //Access Title property

            Title = xmlProperties.GetElementsByTagName("title",DC).Item(0).InnerText;

            if (Title != null)

                message += "Title : " + Title + "\n";

            //Access Subject property

            Subject = xmlProperties.GetElementsByTagName("subject", DC).Item(0).InnerText;

            if (Subject != null)

                message += "Subject : " + Subject + "\n";

            //Access Author property

            Author = xmlProperties.GetElementsByTagName("creator", DC).Item(0).InnerText;

            if (Author != null)

                message += "Author : " + Author + "\n";

            //Access Keywords property

            KeyWords = xmlProperties.GetElementsByTagName("keywords", CP).Item(0).InnerText;

            if (KeyWords != null)

                message += "KeyWords : " + KeyWords + "\n";

            //Access Comments property

            Comments = xmlProperties.GetElementsByTagName("description", DC).Item(0).InnerText;

            if (Comments != null)

                message += "Comments : " + Comments + "\n";

            //Access Category property

            Category = xmlProperties.GetElementsByTagName("category", CP).Item(0).InnerText;

            if (Category != null)

                message += "Category : " + Category + "\n";

            MessageBox.Show(message, "Built-In Properties", MessageBoxButtons.OK, MessageBoxIcon.Information);

            wordprocessingDocument.Close();