Version 19.0.3 ( 64-Bit version)
Installer for Macs running Mac OS 10.12 or later (64-Bit version)
5.2 MB download dmg file.
Macintosh Terminal Emulation for Wyse, VT100, VT220, Viewpoint
After you download the installer, you will have a file called
"MacWise Installer.dmg" in your standard download location.
(That might be on the desktop or it might be in the Downloads folder)
Double click on that file to mount the "MacWise Installer" disk image on your desktop.
Just drag the MacWise and MacWise Fonts icons as explained on the installer screen.