.glb
GLB modelglTF Binary
The single-file binary form of glTF from the Khronos Group. Meshes, materials, textures and animation are packed together, so one file loads ready to display.
Web 3D, AR previews, product viewers and game assets.
Opens in Blender, three.js, Babylon.js, Windows 3D Viewer
About GLB files.usdz
USDZ model
A single-file, uncompressed ZIP package of Pixar’s Universal Scene Description, introduced by Apple and Pixar in 2018. It bundles a scene with its textures for AR on iPhone and iPad.
Augmented reality on Apple devices and 3D product views on websites.
Opens in Quick Look on iPhone, iPad and Mac, Reality Composer, Blender
About USDZ files