private void ConvertTagXML()
        {
            for (int i = 0; i < listXLS.CheckedItems.Count; ++i)
            {
                ConvertXML convertXML = new ConvertXML(pgbCurrent, lbCurrent);
                convertXML.LoadXLS(listXLS.CheckedItems[i].Text);
                convertXML.ConvertTagXML();
            }

            bReadyWork = false;
        }
        private void btConvertNoneTagXML_Click(object sender, EventArgs e)
        {
            if (listXLS.CheckedItems.Count == 0)
            {
                MessageBox.Show("Check 1 more files!");
                return;
            }

            for (int i = 0; i < listXLS.CheckedItems.Count; ++i)
            {
                ConvertXML convertXML = new ConvertXML(pgbCurrent, lbCurrent);
                convertXML.LoadXLS(listXLS.CheckedItems[i].Text);
                convertXML.ConvertNoneTagXML();
            }
        }