Based on the filename you provided ( waveshell1-vst3 10.0-x64 ), here is the helpful text explaining what this file is, why you are seeing it, and how to use it.
%APPDATA%\Waves Audio\~/Library/Caches/Waves/WaveShell1-VST3 10.0-x64 is not a standalone VST plugin; it is a bridge component vst plugin waveshell1-vst3 10.0-x64 -vst3-
: In DAWs like FL Studio , open the Plugin Manager , enable "Verify plugins" and "Rescan previously verified plugins" , then run a scan. This "unpacks" the shell so each plugin appears by its own name in your list. Based on the filename you provided ( waveshell1-vst3 10