This is a LAS1.3 reader under the LAS specification version 1.3-R11 released October 24, 2010 (Available at: http://www.asprs.org/a/society/committees/standards/LAS_1_3_r11.pdf), but using only the Point Data Record Format 4.This work is supported by the Centre for DIgital Entertainment at the University of Bath, and Plymouth Marine Laboratory.