MapTo: 4-byte integer (char)
Editor only?: 1-byte integer (decimal)
AWRD: (align to 2-byte boundary)
Exception count: list (2-byte one-based item count)
  ID: 2-byte integer (decimal)
  Map to: 4-byte integer (char)
  Editor only?: 1-byte integer (decimal)
  AWRD: (align to 2-byte boundary)