Error code 1623 stops office 365/2019/2016 installation
Login to your Microsoft office account www.office.com/signin
Go to your dashboard to see the product you purchased.
Select “Install Office “ option and then let it download, (you may see click Save, Run, Setup, or Save File depends on browser type, select “save” for future purpose)
Go to downloads in your computer and Double click on office setup file to install.