DataGridView in Windows Applications

Object oMissing = System.Reflection.Missing.Value;
            //OBJECTS OF FALSE AND TRUE
            Object oTrue = true;
            Object oFalse = false;

            //CREATING OBJECTS OF WORD AND DOCUMENT
           Microsoft.Office.Interop .Word.Application oWord = new Microsoft.Office.Interop .Word.Application();
            Microsoft.Office.Interop .Word.Document oWordDoc = new Microsoft.Office.Interop .Word.Document();

            //MAKING THE APPLICATION VISIBLE
            oWord.Visible = true;

            //ADDING A NEW DOCUMENT TO THE APPLICATION
            oWordDoc = oWord.Documents.Add(ref oMissing, ref oMissing, ref oMissing, ref oMissing);


            //SETTING THE RANGE ON THE BOOKMARK
            Object oBookMarkName = "My_Inserted_Bookmark_On_Template";



            oWord.Selection.ParagraphFormat.Alignment = Microsoft.Office.Interop .Word.WdParagraphAlignment.wdAlignParagraphLeft;
                    oWord.Selection.Font.Bold = (int)Microsoft.Office.Interop .Word.WdConstants.wdToggle;
                    oWord.Selection.TypeText("Set Code:" + "        "+ "Set test:");
                    oWord.Selection.TypeParagraph();

                    oWord.Selection.TypeText("Set Description" + "        "+ " test Description ");



            oWord.Selection.TypeParagraph();
            oWord.Selection.TypeParagraph();


            Object start = Type.Missing;
            Object end = Type.Missing;
            Microsoft.Office.Interop.Word.Range rng = oWordDoc.Range(ref start, ref end);
            //ADD TABLE
            Microsoft.Office.Interop.Word.Table tbl = oWordDoc.Tables.Add(rng, dataGridView1.Rows.Count , dataGridView1 .Columns.Count , ref oMissing, ref oMissing);
            //END ADD TABLE

            Object defaultTableBehavior = Type.Missing;
            Object autoFitBehavior = Type.Missing;
            object missing = System.Type.Missing;

            Microsoft.Office.Interop.Word.Row newRow = oWordDoc.Tables[1].Rows.Add(ref missing);
            newRow.Range.Font.Bold = 0;
            newRow.Range.ParagraphFormat.Alignment = Microsoft.Office.Interop.Word.WdParagraphAlignment.wdAlignParagraphLeft;

            for (int i = 0; i < dataGridView1.Rows.Count; i++)
            {
                if (i == dataGridView1.Rows.Count - 1)
                        MessageBox.Show("Successfully Exported");
                else
                {
                    for (int j = 0; j < dataGridView1.Columns.Count; j++)
                    {

                       tbl.Cell(i + 1, j + 1).Range.Text = dataGridView1.Rows[i].Cells[j].Value.ToString();
                    }
                }
            }
            oWord.Selection.TypeParagraph();