The first and usually only step is to download all your transaction data from CHAOEX and upload them to 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 years - not just the current one!
That's all you have to do. The only other thing to be vary of is to tag your airdrops/forks so they appear as Income on your final cryptocurrency tax forms!