Incorrect editing of General Settings

In an unexperienced effort to upload my already developed WordPress blog from localhosting (XAMPP) to a remote hosting, I changed the WordPress address and Blog Address (in the General Settings page) from https://localhost/wordpress to https://example/wordpress. As a result, don’t have access to my WordPress blog anymore, since when I try to access from https://localhost/wordpress/wp-admin/ I get redirected to https://example/wordpress/wp-admin etc…., where the database does not exist. How can I get out of this mess? Is there a php. or htaccess or MYD, MYI file I can modify to be able to access again?
Thank you very much for your support