VAGSuite.frmMain.btnSplitFiles_ItemClick C# (CSharp) Method

        private void btnSplitFiles_ItemClick(object sender, ItemClickEventArgs e)
        {
            if (Tools.Instance.m_currentfile != "")
            {
                if (File.Exists(Tools.Instance.m_currentfile))
                {
                    string path = Path.GetDirectoryName(Tools.Instance.m_currentfile);
                    FileInfo fi = new FileInfo(Tools.Instance.m_currentfile);
                    FileStream fs = File.Create(path + "\\chip2.bin");
                    BinaryWriter bw = new BinaryWriter(fs);
                    FileStream fs2 = File.Create(path + "\\chip1.bin");
                    BinaryWriter bw2 = new BinaryWriter(fs2);
                    FileStream fsi1 = File.OpenRead(Tools.Instance.m_currentfile);
                    BinaryReader br1 = new BinaryReader(fsi1);
                    bool toggle = false;
                    for (int tel = 0; tel < fi.Length; tel++)
                    {
                        Byte ib1 = br1.ReadByte();
                        if (!toggle)
                        {
                            toggle = true;
                            bw.Write(ib1);
                        }
                        else
                        {
                            toggle = false;
                            bw2.Write(ib1);
                        }
                    }
                    bw.Close();
                    bw2.Close();
                    fs.Close();
                    fs2.Close();
                    fsi1.Close();
                    br1.Close();
                    MessageBox.Show("File split to chip1.bin and chip2.bin");
                }
            }
        }