UABEA (Unity Asset Bundle Extractor Avalonia) is a modern, cross-platform C# desktop application built with the Avalonia UI framework, serving as a remake of the original Unity Asset Bundle Extractor. The application enables users to view, extract, import, and modify Unity asset files and asset bundles from Unity games and applications (Unity 5.0 and later). It provides a comprehensive GUI for browsing and editing assets, supports batch operations for processing multiple files at once, includes command-line interface capabilities for automation, and offers mod package support for game modification workflows.