Based on OWASP/www-project-integration-standards#25:

Given a REST call, add the ability to export the results into a google sheets spreadsheet which allows humans to get the mappings into a CSV format. This is already partly implemented (application/utils/spreadsheet.py) but we haven't implemented any API plumbing for it.

In the FE, that could be implemented as a Button (see below).
It should handle CRE pages, standard pages and generic search pages.