TikTok and Instagram mostly happen on your phone, where the browser extension can't see. Their data download fills that gap. Request it in the app, then drop the file here.
Gives us: videos your For You feed played, and your likes.
Gives us: accounts whose posts you viewed, and posts you liked or saved.
Your file is read once and then discarded. We keep only what's needed for your dashboard: which videos or accounts you saw or liked, and when. Messages, contacts, and profile details in the export are ignored. You can delete what you uploaded at any time above; your browser-extension data is not affected.