ASUS P9X79 LE motherboard boardview in the .fz format, revision or version 1.01, about 181 KB in size. FZ is the boardview format used for ASUS boards and opens in OpenBoardView, FlexBV, Boardviewer and similar tools. The view shows every component location on both sides of the PCB with net names and pin connections, which speeds up finding test points, tracing a power rail from the VRM and identifying a shorted capacitor. Check that the revision on the board matches 1.01 before relying on the layout.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @boardview. Enginerys does not host this file.
How to open a .fz file
Compressed and encrypted boardview used for ASUS, ASRock and Pegatron boards.