It probably won't install anyway

MS has become a rather crappy OS / Office manufacturer and installing 32bit iFilters on a 64bit OS with the file from the link (and only the 32bit version matters!) is probably impossible.
So, either create a system restore point or better: an image from the system partition and reinstall / repair your Word installation or use a different product to search your office files. E.g.
https://www.mythicsoft.com/agentransack or it's big brother, FileLocator Pro. They bring their own iFilters to search in office files...