I have a Dynon Skyview. How do I customize the 'Flight Data Viewer' to match my installed EFIS?

Run the 'Flight Data Viewer' and from the menu select 'Options'.
Update your preferences as suggested below.

Data Folders

Data Folders Options
Notes: Do NOT check either of the boxes related to the MGL data formats.

Enter the drive where you will insert the USB stick removed from your EFIS.
Enter the folder path where you would like to store your extracted flight data files. The default is appropriate for most situations.
If you check 'Create Yearly Subfolders ...' folders named with the flight year (ex: 2020) will be created and your flight files will be stored in the correct folder.
'Quickly Display Graphs When ...'. Turn this option on or off and load a saved flight to see the behavior controlled by the option.
'Extend Google Earth Data ...'. If checked a thin line will connect the flight path to the ground. The line makes altitude easier to visualize.
'Minimum time between ...' This option is only useful if the engine is turned off during the flight (motor gliders for example).

Units

Units Options

Data Enables / RDAC #1 / RDAC #2 / Analog / Navigation Enables

Data/Equipment Options
Notes:
You do not need to select or unselect any of the options on the 'Data Enables', 'RDAC #1', 'RDAC #2', 'Analog', or 'Navigation Enables' tabs. The correct options will be selected automatically when you load a Dynon flight data CSV file.
(These options must be set only when you are using a MGL device.)

Plane / Pilot

Plane/Pilot Options
Notes:
These values are saved in each extracted flight file.