I did but the acf images gallery is empty after import.
I i manually add images in the gallery field , this what i get with WP EXPORT
https://mysite.com/wp-content/myimage1.jpg|https://mysite.com/wp-content/myimage2.jpg
So when i put the same url in file to import , the acf gallery is empty after import.
(images files are already in media library, root folder)