Learn how to download files from the internet at runtime in your Unreal Engine projects using the Runtime Files Downloader plugin. This tutorial demonstrates how to download files to storage or memory, track download progress, handle completed downloads, and implement chunked downloading for large files. The plugin works across all platforms and supports both HTTP and HTTPS protocols. Perfect for game developers who need to download updates, DLC content, or any remote assets during gameplay without requiring players to restart the game.
https://dev.epicgames.com/community/learning/tutorials/RZxv/fab-file-downloading-in-unreal-engine-from-basic-to-chunked-downloads
Nice tutorial, really helpful for handling runtime downloads and large files 
For anyone working with online documents or presentations, similar download concepts are also useful outside games. I’ve seen people use tools like a SlideShare downloader when dealing with external slide content, so the approach explained here feels very relevant overall.