- 32 byte header that is read as 8 longword values as follows:

struct {
  uint32_t file_type_id; // must be the constant value "0x00000005"
  uint32_t size_of_cel_data; // bytes
  uint32_t size_of_map_data; // bytes
  uint32_t tile_character_size; // (slChar) one of CHAR_SIZE_*

  uint32_t tile_color_mode; // (slChar) one of COL_TYPE_*
  uint32_t plane_size; // (slPlane) one of PL_SIZE_*
  uint32_t map_data; // (slPage) one of PNB_*, one of CN_*

  uint16_t height; // must be the constant value "1"
  uint16_t width; // must be the constant value "1"
}

    -A file type ID - arbitrarily chosen as [5] for this binary type
    -# of bytes of Cel Data in binary
    -# of bytes of Map Data in binary
    -Tile Character Size  (Macros defined in sl_def.h)
    -Tile Character Color Mode (Macros defined in sl_def.h)
    -Plane Unit Size  (Macros defined in sl_def.h)
    -Map data config  (Macros defined in sl_def.h)
    -Plane dimensions (Height<<16|Width)

- Pallet data block of 0, 32, or 512 bytes based on the color mode indicated in header

- Map data block of size indicated in header

- Cel data block of size indicated in header