Small 141 KB RAR labelled for the ASUS X407MA laptop, with no revision or file type in the name. At this size it most likely holds a boardview or a compact firmware piece rather than a full BIOS image, so inspect it after extraction. Boardview files open in viewers such as OpenBoardView or FlexBV and help locate components, test points and nets. Compare the board revision on the PCB with the data in the file before relying on it for diagnosis.
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 @schematicslaptop. 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.
7-ZipWinRARThe Unarchiver (macOS)