collective.searchevent provides Search Event Portlet for searching Plone default Event content type.
It is also possible to filter the search with tags (Subjects) and paths.
To make filtering work, you need to go to Search Event Collections from Site Setup: Add-on Configuration section and add Event Search Collection which will then be selected in the search event portlet management page.
Exporting search event results to csv file is available for roles who have Modify Portal Content permission who can see Export button on the portlet. The separation of each values are done by '|'.