// HEADER
  4 - Unknown (128)
  4 - Unknown (32)
  4 - Unknown (129)
  4 - Unknown (12)
  4 - Header ("XDA" + null)
  4 - Unknown (130)
  4 - Unknown (12)
  4 - Archive Length
  4 - Unknown (1000)
  4 - Unknown (28)
  4 - Padding Multiple (2048)
  4 - Filename Directory Length
  4 - Filename Directory Offset (2048)
  4 - Details Directory Length
  4 - Details Directory Offset
  4 - Unknown (51)
  4 - Unknown (1988)
  1980 - Padding to offset 2048
  
// FILENAME DIRECTORY
  4 - Section Type (1001)
  4 - Section Length
  4 - Offset to the end of this Section
  4 - Number of Names
        
  // for each name
    4 - Name Type (1002=Folder, 1003=File)
          
    if (type=1002){
      4 - Length of this entry and all the sub-entries within this folder
			4 - Unknown
			4 - Unknown
			4 - Unknown
			4 - Folder Name Length (including null padding)
			X - Folder Name
			0-3 - null Padding to a multiple of 4 bytes
			}
		else if (type=1003){
			4 - Entry Length
			4 - File ID
			4 - Filename Length (including null padding)
			X - Filename
			0-3 - null Padding to a multiple of 4 bytes
			}

// DETAILS DIRECTORY
  4 - Section Type (1020)
  4 - Section Length
	4 - Number of Files
	4 - Unknown

	// for each file offset
		4 - File Offset
		4 - File Length (including padding)
		4 - Unknown

  X - null Padding to a multiple of 2048 bytes

// FILE DATA
  // for each file
    X - File Data
    X - null Padding to a multiple of 2048 bytes