Lenovo boardview for LCFC motherboard NM-D281 in TVW format, a fairly large 17.8 MB. NM-xxxx numbers follow LCFC, Lenovo's own ODM. TVW files come from Teboview and open in TVW-capable viewers; some generic boardview tools cannot read them. The layout is used to locate components and test points, follow nets across both sides of the PCB and trace a short to its source. Make sure the NM-D281 code and revision on the board match before relying on part 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 @schematiclaptopramkushwaha. Enginerys does not host this file.
How to open a .tvw file
Binary boardview from Tebo-ICT test software, frequent for Gigabyte, MSI and many newer laptop boards.