ExtractXenobladeARC

private void ExtractXenobladeARC(byte[] data, string arcname)
        {
            int count = BitConverter.ToInt32(data, 0x4);
            int stringtableofs = BitConverter.ToInt32(data, 0xC);
            if (count < 1) return;
            string outdir = Path.GetDirectoryName(arcname) + Path.DirectorySeparatorChar + Path.GetFileNameWithoutExtension(arcname) + "_" + Path.DirectorySeparatorChar;

            for (int i = 0; i < count; i++)
            {
                Tuple<int, int> offset_size = Tuple.Create(BitConverter.ToInt32(data, 0x18 + 0x10 * i), BitConverter.ToInt32(data, 0x1C + 0x10 * i));
                byte[] fdata = new byte[offset_size.Item2];
                string filename;
                if (stringtableofs > 0)
                    filename = new string(data.Skip((int)(stringtableofs + BitConverter.ToUInt32(data, (int)(stringtableofs + i * 0x4)))).TakeWhile(b => b != 0).Select(b => (char)b).ToArray());
                else
                    filename = "arc/" + i.ToString("0000") + ".bin";
                string fileout = filename.Replace("arc/", outdir).Replace("/", String.Empty + Path.DirectorySeparatorChar);
                if (!Directory.Exists(Path.GetDirectoryName(fileout)))
                    Directory.CreateDirectory(Path.GetDirectoryName(fileout));
                using (var fs = File.OpenRead(arcname))
                {
                    fs.Seek(offset_size.Item1, SeekOrigin.Begin);
                    fs.Read(fdata, 0, fdata.Length);
                    fs.Close();
                }
                File.WriteAllBytes(fileout, fdata);
            }
        }