I downloaded the NREL LCI database (National_Renewable_Energy_Laboratory_USLCI) in JSON format, as a Zip, and decompressed it. When I try to import it (New Database > Processes > Import > EcoSpold > Choose Directory, it just opens the file (which contains subfolders "currencies", "processes", "dq_systems", "locations", "actors"... etc., which contain the JSON files, and I am thus not able to click Next (it's greyed out).
I also tried importing the .zip file but it is greyed out when I go to choose the directory.
How do I import the NREL LCI database?
Appreciate any help on this!