The Extended File Support plugin enhances Obsidian by enabling users to view and embed various file formats that are not natively supported. It provides read-only compatibility for image, design, and 3D model files, including Krita (`.kra`), Photoshop (`.psd`), Adobe Illustrator (`.ai`), and multiple 3D formats (`.gltf`, `.glb`, `.obj`, `.stl`). Users can configure file display settings, such as scaling, embedding dimensions, and camera positioning for 3D models. The plugin also integrates with Obsidian Canvas, ensuring smooth visualization across different workspaces.