The Installer method allows users to access SeoTools every time Excel is launched.
The Installer automatically identifies the correct version to install (32 or 64 bit) . Just follow the instructions and you are on you way:
If you encounter the SeoTools for Excel ended prematurely error, see this page for doing a manual add-in install.
The Installer also handles upgrades from earlier versions. Use the Keep previous version settings option to begin where you left off: