Compressed RAR archive for the ASUS X555LD mainboard at revision 2.0, 134 KB in size. The name does not list the contents, but the size and naming style match an ASUS boardview, frequently in FZ format, so expect a layout file rather than a full schematic. After extracting, open it in FlexBV, OpenBoardView or another compatible viewer to locate components, highlight nets and find test points. Before using it on a board, confirm the silk-screened revision reads 2.0, since other X555LD revisions can have different component placement.
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 @cyberlanelectonik. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.