Add a Set Material node. In the Shader Editor, use an Attribute node (set to "Col" or "Color") to plug the point colors into the Base Color of a Principled BSDF [5].
Press in the 3D Viewport to find the "PCV" tab in the sidebar [1, 6]. 3. Essential Free Helper Tools point cloud visualizer blender free download
Display hundreds of millions of colored points in the viewport without lagging [10]. Add a Set Material node
Add a Geometry Nodes modifier to your imported object. How to Get and Use a Point Cloud
How to Get and Use a Point Cloud Visualizer in Blender for Free
Use File > Import > Stanford (.ply) to bring in your point cloud [2].
If your data isn't in a Blender-friendly format (like .e57 or .las ), you can use these free standalone tools to prepare your files: