Facebook Promo Assets
Click "Download" on each file. If your browser opens it instead of downloading, right-click the button and choose "Save Link As" or "Save Target As."
Next step: Import these into CapCut (free, desktop or mobile). Arrange the 7 video clips on the timeline to match the ~60s voiceover, drop the voiceover in as your main audio, add a royalty-free classical music track (Pixabay Music or YouTube Audio Library) at ~10–15% volume underneath, then export as MP4 for Facebook.