This plugin comes as 32-bit and 64-bit versions.

The 32-bit versions can be found in: Win32 or Mac32.
The 64-bit versions can be found in: Win64 or Mac64.

Windows formats:
VST: .dll
VST3: .vst3
Standalone: .exe

MacOS formats (these might appear as folders):
AU: .component
VST: .vst
Standalone: .app

Usually you only need to copy one version of the plugin (for example: Win32 VST which is the .dll file in the Win32 folder) to the plugins folder of your DAW. Or you can copy it to a folder of your choice, as long as it is set in your DAW settings as a plugins folder.
In the case of MacOS this can be the /Library/Audio/Plug-Ins/Components or /Library/Audio/Plug-Ins/VST/ folders.

For example when using REAPER:
In the REAPER installation folder there is a folder called 'Plugins' where you can add plugin files.

For technical questions and/or issues you can also mail me at: support@evilturtle.nl