The first step is to download all your data from dex.top and upload it into Koinly. There are a few ways you can do that:
Note that if you decide to use CSV files, you must make sure to import your deposits/withdrawals and trades for ALL previous years !
That's pretty much it. The only other thing to be vary of is to tag your airdrops/forks so they appear as Income on your generated crypto tax forms!