Can users be exported from an excel?
The wpForo and WordPress users are the same. You just need to find the way to export user from excel to WordPress.
You should find it on internet:
Thanks, I have already done it through a plugin, now my question is, is there a way to place the avatar and username somewhere?
I would like that when a user logs in, his name and profile picture will appear in the header.
So far I have achieved it but this loads me the information provided by Wordpress, is there any Wpforo code to get the profile information of the forum?
I'm sorry but there is no wpForo code for this. However there is an instruction how to export full users' data using your hosting cPanle > phpMyAdmin database manager from the users and profiles tables. Please see this documentation: https://wpforo.com/docs/root/gdpr/right-to-data-portability/