Import/export for attachment post type
Cory Birdsong
Currently you can't select "attachment" in the list of post types when starting an import/export. It's possible to export from it using a custom query and some trickery, but there is no way to import directly into it if you need to update metadata for attachment items.
Trey Mills
Cory Birdsong thanks for the suggestion! In the meantime, you can add "Media" to the export/import selections with custom code and our API, like this: https://wpcb.me/aaNO3q. Just keep in mind that you can't import new images with a "Media" import using this workaround, but you can update the data for existing ones.