RAR archive of 21.8 MB labelled for the Lenovo-style model code Y560 with an i7 processor variant; the name does not list what is inside, so expect schematic, boardview or BIOS material for that configuration. At this size it may bundle several documents together. Extract it with WinRAR or 7-Zip and inspect each file before use. Match the board number printed on the mainboard against any schematic or boardview found inside, and back up the original SPI flash contents before writing any BIOS image from the set.
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.