Export target group with header line filled with attribute descriptions.

Hello CRM-Experts,

in our CRM Marketing Module, I exported target group by using mail form. The problem is that in the exported excel list we get a header line filled with attributes IDs and not with attributes descriptions, as desired.

However, in the mail form in the code source there are as well attribute IDs as its descriptions.

Any idea how to get attributes descriptions displayed instead of its IDs?

Thanks in advance for your help.

Andrej