The first and usually only step is to download all your transactions from FMFW (formerly Bitcoin.com Exchange) and upload them into Koinly. There are a few ways you can do that:
If you want to use CSV files, you have to make sure to import your deposits/withdrawals and trades for ALL previous years - not just the current one!
That's all you have to do. Don't forget to tag your airdrops/forks so they show up as Income on your generated crypto tax documents!