/// <summary>
        /// Save data blocks
        /// </summary>
        /// <param name="vm">Export parameters</param>
        /// <param name="blocksToSave">Collection of data blocks to save</param>
        private static void SaveDataBlocks(ExportZ80ProgramViewModel vm, IEnumerable <byte[]> blocksToSave)
        {
            try
            {
                // --- Create directory
                var dirName = Path.GetDirectoryName(vm.Filename);
                if (dirName != null && !Directory.Exists(dirName))
                {
                    Directory.CreateDirectory(dirName);
                }

                // --- Save data blocks
                if (vm.Format == ExportFormat.Tzx)
                {
                    using (var writer = new BinaryWriter(File.Create(vm.Filename)))
                    {
                        var header = new TzxHeader();
                        header.WriteTo(writer);

                        foreach (var block in blocksToSave)
                        {
                            var tzxBlock = new TzxStandardSpeedDataBlock
                            {
                                Data       = block,
                                DataLength = (ushort)block.Length
                            };
                            tzxBlock.WriteTo(writer);
                        }
                    }
                }
                else
                {
                    using (var writer = new BinaryWriter(File.Create(vm.Filename)))
                    {
                        foreach (var block in blocksToSave)
                        {
                            writer.Write((ushort)block.Length);
                            writer.Write(block);
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                VsxDialogs.Show($"An error has been raised while exporting a program: {ex.Message}",
                                "Errorr when exporting file");
            }
        }
        /// <summary>
        /// Save data blocks
        /// </summary>
        /// <param name="vm">Export parameters</param>
        /// <param name="blocksToSave">Collection of data blocks to save</param>
        private static void SaveDataBlocks(ExportZ80ProgramViewModel vm, IEnumerable <byte[]> blocksToSave)
        {
            // --- Create directory
            var dirName = Path.GetDirectoryName(vm.Filename);

            if (dirName != null && !Directory.Exists(dirName))
            {
                Directory.CreateDirectory(dirName);
            }

            // --- Save data blocks
            if (vm.Format == ExportFormat.Tzx)
            {
                using (var writer = new BinaryWriter(File.Create(vm.Filename)))
                {
                    var header = new TzxHeader();
                    header.WriteTo(writer);

                    foreach (var block in blocksToSave)
                    {
                        var tzxBlock = new TzxStandardSpeedDataBlock
                        {
                            Data       = block,
                            DataLength = (ushort)block.Length
                        };
                        tzxBlock.WriteTo(writer);
                    }
                }
            }
            else
            {
                using (var writer = new BinaryWriter(File.Create(vm.Filename)))
                {
                    foreach (var block in blocksToSave)
                    {
                        writer.Write((ushort)block.Length);
                        writer.Write(block);
                    }
                }
            }
        }