RAR archive with the boardview for MSI board MS-16W11, revision 1.0; the name does not state the laptop model. MSI designs its own notebook boards and marks them with MS- numbers, where the 16W1 base number and trailing digit distinguish the board version. The file shows part placement and nets, helping with short hunting, rail tracing and locating the BIOS or EC chips. Open it with FlexBV, OpenBoardView or a similar program after extracting, and confirm the number and revision on the PCB first.
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 @BoardSchematic. 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.