Leica HDS laser scanners use Cyclone software to do initial processing and cleanup of the data.  If you want to use Leica HDS data in Rapidform, you can save the scans in Cyclone as .PTS or .PTX formats, both of which are supported by all Rapidform products.

As an aside, it’s important to know how to properly import and triangulate point clouds from Leica and other long range scanners.  For very large data sets, using the 64 bit version of Rapidform is a good idea, and in XOR and XOS, the Add-Ins menu has some great tools for importing large data sets (helpful on both 32 bit and 64 bit setups).  To triangulate (i.e., make a mesh) point clouds from “spherical” scanners that project out and collect data all around them, use 2D Triangulation and set it to Spherical.