Sometimes You want to "take home" Your latest trip on sea and "replay" it or replay it doing some changes in the settings for the OpenPlotter or OpenCPN applikation and se the result direct.
One way is to create log files with the the "raw" NMEA data and then use them at home with tips from this post.
Creating log files from NMEA 2000 bus, N2K, is the most straightforward.
Check what name Your CAN usb interface have. One way doing it is reading the log from auto setup found in "OP=> Tools => Auto Setup"
Open Terminal and just type the following with Your CAN usb name
actisense-serial -r /dev/ttyUSB0 > N2K_2017-08-08.txt