Chunk

• WDT, ADT, WMO, WDL and Legion+ M2/WotLK files follow a chunked structure similar to IFF, consisting of chunks of the following format:

struct IffChunk
{
  uint32_t token; // or "magic" or "identifier"
  uint32_t size;
  uint8_t data[size];
};

• The initial chunk in most of these files is an MVER chunk, specifying the version of the files in a 32-bit integer.
• All files use Intel (little-endian) byte order.