import media csv (only database record, without image)

Due to the large size of the CSV files I have exported the articles separately from the media.
I imported the articles correctly and I have to import the CSV media but without importing the images, because the files are thousands and they are already present in the server (wp-content / upload / …).
If I import the CSV without downloading the files, wordpress does not insert image records into the database and I don’t see anything in the Media library.
How can I force the insertion of records without having to have the images downloaded again?

Simone