Small RAR package for the Lenovo board NM-A361, a mainboard code following the Compal / LCFC scheme found on many Lenovo notebooks. The name does not say what is inside; at 675 KB it is likely a boardview or a compact firmware file rather than a full schematic set. Extract it and identify the contents by extension. Boardviews open in viewers such as OpenBoardView or FlexBV, while BIN files go to an SPI programmer. Make sure the NM number and revision on the PCB match before tracing faults or 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 @schematiclaptopramkushwaha. 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.