The first step is to download all your data from DigiFinex and import it into Koinly. There are a couple of ways you can do this:
Note that if you want to import CSV files, you must make sure to import your deposits/withdrawals and trades for ALL previous years and not just the current one!
That's pretty much it. Don't forget to tag your airdrops/forks so they show up as Income on your generated cryptocurrency tax reports!