Code: Select all
byte     sig[3]; //TBX
byte     version;
uint32   unknown;
uint32   headerSize;
The rest is just a regular DDS file nothing tricky.
Source
http://github.com/cra0kalo/xbt2dds
Code: Select all
byte     sig[3]; //TBX
byte     version;
uint32   unknown;
uint32   headerSize;