Boardview file covering the A55-C motherboard at PCB revision 1.00, in FZ format and about 96 KB. The file name states nothing beyond the model and revision, and the brand is not given. A boardview like this maps every component and net on the board, letting a technician locate a shorted capacitor, check continuity between a connector pin and a chip, or find where a rail is generated. Open it in a free viewer such as OpenBoardView, and do not confuse it with the separate A55-C PLUS file, which is a different board.
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.