hello @felipejoys,
1- save a local.ini file is possible with node.js but takes time.
2- conversion to USD equivalent is also possible using coinmarketcap API

for the main purpose, how do you want to see the author rewards?
How is it different than the https://fdsteemtools.neocities.org/steemcash.html tool?

To keep it simple and not use node, would you like to open the .ini file in a new browser window and save as anyname.ini? This is much faster.

When you say .ini, what are the keys? Can you provide me a sample structure with all the data?

FD.