private void OpenWorkingFile() { OpenFileDialog ofd = new OpenFileDialog(); ofd.Multiselect = false; ofd.Filter = "Trionic 5 files|*.bin;*.s19"; if (ofd.ShowDialog() == DialogResult.OK) { CloseProject(); string filename = string.Empty; if (ofd.FileName.ToUpper().EndsWith("S19")) { srec2bin cvt = new srec2bin(); cvt.ConvertSrecToBin(ofd.FileName, out filename); } else { filename = ofd.FileName; } OpenWorkingFile(filename); m_appSettings.LastOpenedType = 0; SetDefaultFilters(); } }