Where do I find where woocommerce stores product data in cpanel file manager?

Your products content are storied in database. take a backup of your database from cpanel and may be configure it into a new subdomain or local server and test.
also please don’t forget to take a backup of wp-contents folder where you have uploded all products images and other data.

Thank you

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)