I just spent a number of hours searching for filters and then exporting a gigantic CSV file because it wasn’t obvious that there was any settings to select which post type, fields, etc.
I think it would be good to add a link on the export page that says something like:
“You can set export filters from the Filters tab on the settings page”
The tabs on the settings page could also use some extra CSS or something to make it more obvious that there is 2 tabs. I did not see the extra tab link after looking at the settings page multiple times.
One more thing, but maybe not needed as much, but the filters should be INCLUDE filters, not exclude filters, and users should be warned to set filters before doing the export. Add a message saying:
“You haven’t set any filters for your export yet. The resulting CSV file might be very large and take a long time to export. Set some filters now.“
Anyway, just my two cents after searching for filters and trying alternate plugins for hours before realizing your plugin had filters.