Open your FTP program if your Joomla! website is stored on a remote server and locate the root directory of your Joomla! installation. Let's assume that our Joomla! installation is on
example.com and that we're using FTP throughout the book. We'll use FileZilla, which can be downloaded for free from http://filezilla-project.org.
By storing related files such as CSS files, images, and the template files together in a Joomla! template, it's easier to see which files relate to a particular Joomla! template.