RAR archive for the Lenovo Y560 laptop, 2.81 MB, marked as a copy (1). The name does not say whether it contains a schematic, boardview or BIOS, so open it with WinRAR or 7-Zip to check. Material for this model is typically used to trace power rails, locate test points and diagnose shorts or failed graphics. Before relying on anything inside, compare the board number printed on the mainboard with the documents, and back up the original flash chip before writing firmware.
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 @hrtechno. 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.