public VFile GetFile(string file)
 {
     if (!_files.ContainsKey(file))
     {
         return(null);
     }
     return(VFile.FromZipEntry(_files[file]));
 }
        public VFile[] GetFilesByExtension(string extension)
        {
            var fileList = new List <VFile>();

            foreach (var vfile in _files)
            {
                if (vfile.Key.EndsWith(extension))
                {
                    fileList.Add(VFile.FromZipEntry(vfile.Value));
                }
            }
            return(fileList.ToArray());
        }