For quick 3D visualization, I've used three.js and a minimal HTML page. It has loaders for many common 3D file formats so you start with one of the samples at h

For quick 3D visualization, I've used three.js and a minimal HTML page. It has loaders for many common 3D file formats so you start with one of the samples at https://threejs.org/examples/ https://threejs.org/examples/ and hack around until it loads the data that you want.