int count = Marshal.SizeOf(typeof(SpellDBC_Record));
byte[] readBuffer = new byte[count];
readBuffer = reader.ReadBytes(count);
handle = GCHandle.Alloc(readBuffer, GCHandleType.Pinned);
body.records[i] = (SpellDBC_Record)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(SpellDBC_Record));
handle.Free();