LAS

LAS – abbreviation for laser file format; the LAS file format is a public file format for the interchange of 3-dimensional point cloud data between data users. Although developed primarily for the exchange of lidar point cloud data, this format supports the exchange of any 3-dimensional x,y,z tuplet. LAS is a binary file format that maintains information specific to the lidar nature of the data while not being overly complex.

The compresses version is LAZ.

https://coast.noaa.gov/data/digitalcoast/pdf/lidar-101.pdf

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