It might be much better for Nu to be able to allow users to pick these files from the Assets and edit them in the editor via an ImGui-based CSV editor. Gaia would also have to provide the ability to edit multiple CSV files at a time, which I suppose just requires a tab pane within the CSV editor pane.
The primary representation we recommend for bespoke game data is in CSV, such as that found in Omni Blade -
https://github.com/bryanedds/Nu/blob/master/Projects/Omni Blade/Assets/Data/TechData.csv
It might be much better for Nu to be able to allow users to pick these files from the Assets and edit them in the editor via an ImGui-based CSV editor. Gaia would also have to provide the ability to edit multiple CSV files at a time, which I suppose just requires a tab pane within the CSV editor pane.