PKHeX.Form1.openQuick C# (CSharp) Method

        private void openQuick(string path)
        {
            // detect if it is a folder (load into boxes or not)
            if (Directory.Exists(path))
            { loadBoxesFromDB(path); return; }

            string ext = Path.GetExtension(path);
            FileInfo fi = new FileInfo(path);
            if (fi.Length > 0x10009C)
                Util.Error("Input file is too large.", path);
            else
            {

                byte[] input; try { input = File.ReadAllBytes(path); }
                catch { Util.Error("File is in use by another program!", path); return; }

                try { openFile(input, path, ext); }
                catch
                {
                    try
                    {
                        byte[] blank = PKX.encryptArray(new byte[260]);

                        for (int i = 0; i < 232; i++)
                            blank[i] ^= input[i];

                        openFile(blank, path, ext);
                    }
                    catch { openFile(input, path, ext); }
                }
            }
        }
        private void openFile(byte[] input, string path, string ext)