Hosts older versions of the launcher, including the classic 1.0 version released during the Lollipop era.
You likely downloaded a very old version (e.g., 4.x). Delete it and search for version 6.1.81 or 6.2.10 . Those are the final TouchWiz versions before Samsung moved to "Grace UX" on Android 6. samsung touchwiz home lollipop 5.1 1 download
If you are looking for just the launcher file to attempt installation on a compatible device, you can find various versions on archival sites: Hosts older versions of the launcher, including the