Issue the following command in your Conda Shell.
pdal translate ./exercises/translation/interesting.laz \ ./exercises/translation/interesting.las
pdal translate ./exercises/translation/interesting.laz ^ ./exercises/translation/interesting.las
LAS is a very fluffy binary format. Because of the way the data are stored, there is ample redundant information, and LASzip is an open source solution for compressing this information. Note that we are actually inflating the data here. Its laz from the workshop and we are converting it to las.
Verify that the laz data is compressed over the las: