Lens

Ok I found a little work around. Its not very clean I suppose, but I am not a coder. This works with the extra fields from cimy. I suppose it should also be easy to adjust this for Register Plus.

Ok here we go for the modifications of the users2csv.php file (Version 1.4.2):

Line 149 add to the following array the additional fields you would like to have:

$fields = array('URL','E-Mail','URL','Display Name','Registration Date','First Name','Last Name','Nickname');

example:
$fields = array('URL','E-Mail','URL','Display Name','Registration Date','First Name','Last Name','Language','Adress','Zip Code','City','Country','Phone');

Be sure these extra fields have been created in Cimy or Register Plus

Line 169:
Below this Line add a new query to query the table from cimy or Register Plus:

Line 169
$query = "SELECT meta_value FROM ".$wpdb->prefix."usermeta WHERE user_id = ".$results[$i]['UID']." AND meta_key = ";

Added query example for cimy:
$query2 = "SELECT value FROM ".$wpdb->prefix."cimy_uef_data WHERE user_id = ".$results[$i]['UID']." AND field_id = ";

Now add after Line 175/176 `
$nnquery = $query . “‘nickname'”;
$results[$i][‘nickname’] = $wpdb->get_var($nnquery);`

The new queries for your extra fields (example):

$langquery = $query2 . "'1'";
$results[$i]['1'] = $wpdb->get_var($langquery);
$streetquery = $query2 . "'3'";
$results[$i]['3'] = $wpdb->get_var($streetquery);
$codequery = $query2 . "'4'";
$results[$i]['4'] = $wpdb->get_var($codequery);

The numbers are the field_id from cimy. Check them through phpmyadmin.
Hope someone may understand this. At least it works for me 🙂