Use file retention retroactive?

Hi guys,

several weeks ago I implemented file retention to our nextcloud. When people upload data, the file gets tagged automatically and will be deleted after 14 days.

Unfortunately, there was already a lot of data (about 30GB) before I activated file retention.

How can I manage to tag all older files? Our requirement is a clean storage, there is no data which shall be stored for more than 14 days.

Thank you very much

anyone? :pensive: