hi can any body help me please..i have installed magento on live server and now i want to import all products and category of a website which is allready running live.. how can
You can try to use 3rd party service to export products database from one server to another http://importexportbridge.xpscommerce.com/
There required to specify source server address, API username, password and destination server details to transfer database data.
Products, attributes, images data going to be transfered automatically to destination server.