Three-dimensional model created by LEGO Digital Designer (LDD), a program used for constructing virtual LEGO designs; saved in a compressed .ZIP format and contains two files: IMAGE100.PNG (a .PNG design preview) and IMAGE100.LXFML (the .LXFML design specified in XML). NOTE: An older LXF format used to include MODEL100.MODEL files within the Zip container.
File created in the LEN Exchange Format (LEN), a format used for exchanging swimming data (also referred to as the "Lenex" format); contains swimming event data that allows competition organization and record keeping; helps to facilitate the exchange of data between race organizers, swimming clubs, and associations. LXF files are actually .ZIP files that contain a compressed .LEF file. An LEF file stores the actual swimming exchange data in an XML format. If you want to view the raw data, you should decompress the LXF file and then open the LEF file with a text or XML viewer.