Hello, CJCORP,
Thank you for getting in touch with us.
1/ You need to translate the parent theme, not the child theme. The correct file name will be – xstore-fr_FR.po
2/ Please re-name xstore-core-fr.po to xstore-core-fr_FR.po.
If you have any additional questions or concerns, please do not hesitate to reach out to us. Our support team is always available to assist you.
Kind Regards,
8theme team