Need some help about redirection

Hello i want to redirect thie url
http://site_name/9-jewelry

to

http://site_name/9-jewelry.html


RewriteCond %{HTTP_HOST} ^site_name/9-jewelry [NC]
RewriteRule ^(.*)$ http://site_name/9-jewelry,html/1$


but it give error can any help me i need some urgent fix there

 

You can turn on Adds Suffix to URL in the Global Configuration, it will add a docuent type.

 

<meta content='5;url=http://www.YOUR-URL.com/' http-equiv='refresh'/>