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Lesson 10e2: Using LASzip to Decompress Lidar

Video Transcript
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Detailed Description

By the end of this lesson, you will understand the difference between the LAS and LAZ format, know where to download the laszip.exe tool, and how to decompress a LAZ file to a LAS file using laszip.exe. The USGS offers other lessons on using LAS files in ArcGIS Pro, Global Mapper, and LP360.

Please note that some of our URLs in the video have changed. All URLs beginning with '' have been updated to ''. These URLs should reroute automatically, but if you have an issue replace '' with ''.  If you have questions, please visit

This lesson contains links to data hosted at an ftp site which was active when this video was published. That site is no longer functional.  Please substitute the following address in place of the ftp address: 

Finally, the LasZip.exe downloadable file is now located at:




Public Domain.