Report showing Respond > Incidents > INC-000000 > Journal notes
There is currently no way to do this directly from the NetWitness UI. The data is available via the REST API (details here: NetWitness Suite API User Guide for Version 11.1 ) if that approach is at all enticing to you.
Beyond that, if you can help me understand the use case a bit better, we can publish a concept on our Ideas portal and start the process of considering it for the product roadmap. I could see a number of reasons you'd want to export the Journal information, but based on the underlying use cases there might be different approaches we could take that only exporting via CSV. Eg. Do you want a timeline of analyst activity, the ability to extract indicators/insight out of the journals, just the ability to keep a historic record of activity, etc?
FYI - in case you aren't familiar, the Ideas portal lives here: https://community.rsa.com/community/products/netwitness/ideas