media library – Does using the WordPress Import tool still include attachment data if “Download and import file attachments” is not selected?

I’m in a unique situation where I have to import WordPress content into a production server, but I don’t have SSH access to the server files or database. I can’t install plugins on the production server, so I am limited to the built-in WordPress Importer tool.

I don’t have any issues bringing over Posts and Pages, but it’s extremely hit or miss when bringing over the Media Library, of which I have something like ~2000 items.

What I do have, however, is access to the S3 bucket where the production server hosts the Media Library. The production server also automatically rewrites URLs for the media library to point to the S3 bucket.

My question is: If I migrate my Media Library files to my S3 bucket beforehand, then use the WP Exporter tool to export “All content” from my source site and import it into my production site and leaving “Download and import file attachments” unchecked, will my Attachment data (not the files themselves) still be imported into the database?