Detail link: https://www.wpallimport.com/wordpress-xml-csv-import/
WordPress XML Import. WordPress CSV Import. It's easy with WP All Import. People call WP All Import magical for a reason - it works with any XML or CSV file, imports images, and can easily import data to plugin and theme fields or anywhere else you need it. Simple drag & drop interface; Run your import automatically on a schedule; Import image galleries, categories, custom fields, and more; Works with any file structure, no need to edit or reorganize data