The plugin imports a CSV file and adds it to your Linked Data tab in Sketch. The generated JSON is ready to be used with the Sketch native function Linked Data (Documentation here).
Linked Data permits to handle Text values and Images. This plugin generates a JSON dictionary that contains all the available (and overrideable) text layers values and images. The JSON file (named after the selected layer) and it Images are stored into a Lined-Data folder available inside your Sketch folder.
As soon as you import your dataset, it becomes automatically available in your data set list.