no these are not presets/transitions, and it doesn't matter if they are in a downloads folder
or whatever. This is not a Premiere Pro issue, you have to get these files into
the project panel as you import any footage or media files. These are simply
Media Files, not transitions, not presets, not scripts, not plugins, not something
Premiere Pro will understand other than regular media files or more simply, footage.
Just drag them to the timeline with blending mode (opacity), and they will do the
job of what you can call 'transitions'... I would rather put them in a transition overlay
videos category on envato elements, if that was applicable by envato.
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