To use FTP software to transfer files, you will typically need to know your site's FTP address or IP address.

Knowing your site's FTP address or IP address is essential when using FTP software to transfer files. The FTP address, which is often the domain name of your website (such as ftp.yoursite.com), or the specific IP address of the server, allows the FTP client to locate and connect to the correct server where your files are stored. This connection is critical for uploading or downloading files between your local machine and the server.

Without this information, the FTP client would not be able to establish a connection, making it impossible to perform file transfers. Additionally, users may also need a username and password to authenticate their access, further underscoring the importance of knowing the correct FTP information to carry out these operations successfully.