how to import/export custom email field?

Hi everyone!
I tryed add custom email field used article and it worked.
Anybody knows how to use default tools to export and import data from a custom module that contains an custom email field, just like it works with the Accounts module?

Thx for help :slight_smile:

Clarification of the issue:
When you try to export data using default tools into an excel format, there will be no custom email field in them.
SuiteCRM Version 7.7.4
Sugar Version 6.5.24 (Build 509)