.pkgfile should appear in your downloads folder. Open it and installer will guide you through the installation process.
.pkgfile can be moved to trash. To load Emvoice One in your DAW do one of the following. If your DAW is not already open, open it and your DAW should scan for new plugins as it is loading.
Macintosh HD:/Library/Application Support/Avid/Audio/Plug-ins/
.exefile will appear in your downloads folder when you download Emvoice One for Windows.
.exefile and setup will guide you through the installation process.
C:\Program Files\Common Files\Steinberg\VST2
C:\Program Files\Common Files\VST3