A .pts file is primarily known as a plain text 3D point cloud data file commonly used in 3D laser scanning, LiDAR, surveying, and computer-aided design (CAD) applications. It typically contains spatial coordinate data, specifically the X, Y, and Z coordinates of points measured in a 3D space, often accompanied by intensity values or RGB color information for each point. Because of its straightforward ASCII text structure, each line in the file usually represents a single point, making it easily readable and parseable by various geospatial and 3D modeling software. It is heavily relied upon by civil engineers, architects, archaeologists, and game developers for rendering precise digital elevation models, topological surveys, and detailed three-dimensional reconstructions of physical objects and environments. Additionally, in some contexts, the .pts extension can also refer to Pro Tools Session files used in digital audio workstation environments, though the 3D point cloud format remains the most widespread association in technical and scientific fields.