This is a screen capture of the Export Conversation Log dialog.

Located at the top of the dialog is the informational note,"Your skill bot can only log conversations when you've turned on the logging options in Settings > General. By default, logging is turned off."

Below this note, the dialog has the following export options. From top to bottom, they are:
  • Intent Conversation Log (selected in this image)
  • Q&A Conversation Log
  • Skill Conversation Log
Below these options is a field called Time Period, which is a date picker.

At the bottom left of the dialog is the Export button.