The XYZ Grid filter exports to the XYZ grid file format.
The XYZ file is a simple encoding of 3D points into a text file. Each line of the file contains three numbers. Each triplet of three numbers comprises the X, Y, and Z coordinates, respectively, of a point in 3D space.
File Name Extensions
Select an image module and choose the File | Save Data command.
File Format Chart
File | Save Data