XSHELL and XFTP download address is null 
https://www.xshell.com/zh/xshell/
After clicking the download, there is a free license link on the right,
After clicking in, fill in your name and email address truthfully.
After clicking download, there will be a download link in your mailbox, as shown in the figure
Click this link to jump to the download interface of the free version
After downloading, the file should be as shown in the figure
These two files are installed by default. Or maybe change the installation path, it doesn't matter.
After installation, click New in the upper left corner
As shown in the figure, XSHELL completes the installation configuration
As shown in the figure, Xftp completes the installation configuration