1. dbc
2. wdb
3. wtf
4. tools folder
   1. the folders inside are some kind overlapping and conflicts, so I donnot the version of each
5. How we integrate the data from .dbc .wdb adn .wtf together into the table in the database? Or in which way the table are generated?
6. version
   1. Subtopic 1
   2. Subtopic 2