Format a .csv transaction history file from the Crypto.com DeFi
wallet for later ACB processing.
One way to download the CRO staking rewards data from the blockchain is to
visit http://crypto.barkisoft.de/ and input your CRO address. Keep the default
export option ("Koinly"). It will output a CSV file with your transactions.
Note: the site does not use a secure connection: use at your own risks.
The file is semi-column separated; when using read.csv, add the sep = ";"
argument.