In order to export the list of users in Virtual Dataport, I would perform the following steps
* Create a new job of type [VDP](https://community.denodo.com/docs/html/browse/7.0/scheduler/administration/creating_and_scheduling_jobs/configuring_new_jobs/vdp_extraction_section#vdp-extraction-section) in the Scheduler Administration Tool.
* In Extraction Section specify the [LIST](https://community.denodo.com/docs/html/browse/7.0/vdp/vql/listing_elements_in_the_catalog/listing_elements_in_the_catalog#listing-elements-in-the-catalog) command in the parameterized query in order to get the user list
* LIST USERS
* In the Exporter section, export the result as a csv file to get the list of the users.
For more information, you can also refer to the following document [General Structure of a Job](https://community.denodo.com/docs/html/browse/7.0/scheduler/administration/creating_and_scheduling_jobs/configuring_new_jobs/general_structure_of_a_job#general-structure-of-a-job) of the Scheduler Administration Guide.
Beside that, you can also refer to similar community Questions [Denodo User Name and User Description](https://community.denodo.com/answers/question/details?questionId=9060g0000004Eq8AAE&Denodo+User+Name+and+User+Description) and [Output of the user management module in Denodo](https://community.denodo.com/answers/question/details?questionId=9060g00000009oIAAQ&title=Output+of+the+user+management+module+in+Denodo.) for more information.
Hope This Helps!