The first and usually the only step is to download all your transactions from Wirex Wallet and import them into Koinly. There are a couple of ways you can do that:
Note that if you want to import CSV files, you must make sure to import your deposits/withdrawals and trades for ALL years !
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 generated cryptocurrency tax reports!