What does it mean to upload or download?
Both upload and download refer to the process of transferring a file. When you transfer a file, you create a copy in the location you choose.
Upload means to transfer a file or files from your own computer to another computer. For instance, you might transfer a file from your home PC to the Yahoo computer that stores your Web Hosting files.
Download means to transfer a file from another computer to your own. You might download a file from your Web Hosting account to your home PC.
FTP is the quickest way to upload and download files. Learn how.
NOTE: As of February 19, 2013, Yahoo Small Business has completed the transition from supporting FTP to FTPS. To avoid any connection issues, please make sure you have updated your FTP client to use your FTPS settings.