FileZilla is a fast and reliable FTP client and server with lots of useful features and an intuitive interface.
For more information about this software, see this GROK article: FileZilla: LSU Overview
To download FileZilla, please go to the FileZilla download page.
Samba is an Open Source/Free Software suite that has, since 1992, provided file and print services to all manner of SMB/CIFS clients, including the numerous versions of Microsoft Windows operating systems. Samba is freely available under the GNU General Public License.
For additional information regarding this software, please see this GROK article: Samba: LSU Overview