RE: What are the supported response and chat log formats for importing and exporting?

This page has not been updated in two years. 

Are there working source files we can see of the above examples? Esp. the csv example, it is not  clear. does the csv need column headers? How are the words separated in the cell itself? 

Each response can have multiple questions separated by a "?", and a third, fourth, and fifth column can be used for keywords, required words, and the topic.

Does that mean I can have * number of responses in column 2?