This is a very usefull feature of wp-cli that allows you to create a list of WooCommerce customers in csv format with a single command line command:
wp wc customer list --user=username--format=csv > customers.csv
where username is the user that has the administrator power
to see all the possible feautres of wc customer list
add –help at the end
wp wc customer list --help
here all the info about WooCommerce and WP-CLI
https://github.com/woocommerce/woocommerce/wiki/WC-CLI-Overview