public void Import()
        {
            var importSelectFile = new OpenFileDialog
            {
                DefaultExt      = ".bc.config",
                Filter          = "Calculator Configuration (.bc.config)|*.bc.config",
                Title           = "Import Sharp.Ballistics Calculator Configuration",
                ValidateNames   = true,
                CheckPathExists = true
            };

            if (importSelectFile.ShowDialog() ?? false)
            {
                Task.Run(() => model.Import(importSelectFile.FileName));
            }
        }