Classic FTP is the most stable and comprehensive ftp client program available and is very easy to use.
Home page - https://www.nchsoftware.com/classic/index.html File Transfer Features
System Requirements
TO MAC USERS: If RAR password doesn't work, use this archive program:
RAR Expander 0.8.5 Beta 4 and extract password protected files without error.
TO WIN USERS: If RAR password doesn't work, use this archive program:
Latest Winrar and extract password protected files without error.