Daml Script input data in CSV

I have data in the form of 3 CSV files that need to be used in a DAML script.

Is the right solution to somehow convert/merge them into a single JSON (DAML-LF JSON Encoding) or can I directly use the 3 CSVs?

At the moment, you can only use a single JSON file so converting the CSVs to JSON and merging them into a single file is your only option.