how to send an email form local host with xampp/wampp.
without hosting the site in live / server.
Not sure what you really mean, but you would have to setup some kind of email client. The easiest thing to do is get PHPMailer (https://github.com/PHPMailer/PHPMailer) or something similar that way you don’t have to really worry about security that much and it’s relatively easy to setup & use.