Not able to install gsnap

I am not able to install gsnap on audacity 3.1.3. it is a dll file but another person is able to do it, please help

Gsnap plugin (dll) is available in 32 & 64-bit versions …https://www.gvst.co.uk/gsnap.htm?pageview=selectos
As is Audacity … https://www.audacityteam.org/download/
Only 64-bit plugins can work in 64-bit Audacity, (same for 32-bit).