Boardview for the ASUS X55U laptop motherboard, with 1.4 most likely being the board revision, packaged as a small .fz file of about 99 KB. Files in this format open in viewers such as OpenBoardView or FlexBV and show component placement, net connectivity and test points. Technicians use them alongside a schematic to trace power sequencing, locate a shorted capacitor or check where a signal runs. Confirm that the revision printed on your mainboard matches before relying on part positions, since ASUS revisions can move components.
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 @boardviews. Enginerys does not host this file.
How to open a .fz file
Compressed and encrypted boardview used for ASUS, ASRock and Pegatron boards.