Answer: Use DasViewer software, go to File-Open File, and select the tileset.json file to open it.
DasViewer is a free real-life 3D model browser independently developed by Dashu Intelligence. It adopts multi-level-of-detail model progressive adaptive loading technology, allowing users to smoothly load larger-scale real-life 3D models with extremely low computer configurations, providing Convenient and fast data browsing operation.