i've pre developed site ( using joomla ) i ought to have editing towards the database using xampp server must i install joomla ? so when i enter localhost/project/index.php i recieve this message

You might not have the ability to visit this site due to:

an out-of-date bookmark/favourite a internet search engine which has an out-of-date listing with this site a mistyped address you've got no use of this site The asked for resource wasn't found. A mistake has happened while processing your request.

I believe you do not need do the installation again. You probably did it before, just you have to install Xampp to operate Apache and MySQL. Then copy your files in the htdocs folder inside a certain folder (Like joomla). But give consideration that you need to possess a backup out of your previous database. Otherwise, you have to install joomla again to produce database and it is tables.

I made use of AMPPS to complete exactly the same. You are able to import your present installing of Joomla in Softaculous supplied by AMPPS. AMPPS is another WAMP Stack with auto-installation in excess of 230 open-source scripts. All of the site installed by AMPPS and imported manual installations is going to be handled by AMPPS. (Note : Your config file of Joomla ought to be proper. Take bakup before posting)

If nothing works you are able to still install Joomla again because it is easy using AMPPS. Hope this can help. :)