Recently I needed to migrate the contents of a WordPress 2.1.7 (really old!) on a new installation based on WordPress 4.9.1. So i’ve exported all contents from old site using the standard export procedure, but during the import on the new platform, the process fails with this error: Error: This …
Article Link: https://andreafortuna.org/wordpress/how-to-fix-the-wxr-version-error-when-importing-a-very-old-wordpress-export-file/