iOS 12 was released on October 30, 2018. With its release, Apple introduced a pack of new features. One of the features is the support of USDZ file format.
USDZ Is The New AR Format For iOS
Apple developed USDZ format to anticipate the growth of Augmented Reality (AR) technology in mobile phones. The format is based on Pixar’s Universal Scene Description (USD) file specification. Apple simply packaged it along with other assets to render the object in a zero-compression zip file, hence the USDZ name.… Read the rest