Hi Sanjyot,
As always, the more context we have the better. What are you expecting/wanting the JSON file to do? To my knowledge a JSON file is just a bunch of data. Are you trying to load that data into a SmartBuilder variable, so that you can use action blocks to ask for certain pieces of that data? That is possible, but I don't think that's what you're asking.
Are you expecting the JSON file to draw things on the page, or provide some sort of interactivity? I don't think a JSON file on its own can DO anything, it's just a way of formatting/storing data. You would need some sort of JavaScript (or something else) to actually run / make use of that data. Here's a video that basically describes what a JSON file is -
https://www.youtube.com/watch?v=iiADhChRriM&ab_channel=WebDevSimplifiedWithout knowing what you're expecting, or where this file comes from (Was it generated from another tool? Are there more output files that were generated as well?), I don't even know how to begin to answer your question!