You can export posts in CSV format for each post type. It is compatible with posts' custom fields and custom taxonomies.
WP All Import is an extremely powerful importer that makes it easy to import any XML or CSV file to WordPress.
Easily import products from any XML or CSV file to WooCommerce with the WooCommerce add-on for WP All Import.
Manage bulk woocommerce product variations and attribute options
Import Ads+Users from CSV file in ClassiPress Theme
JC Importer allows you to easily import users, posts, custom post types and taxonomies from XML and CSV files.