RAR archive for the MSI board MS-N0141, revision 0A, with no laptop model or document type given in the name. MSI identifies its boards with MS-xxxx codes printed on the PCB, and N-series numbers are used on its notebook and compact designs. The 662 KB package is likely a schematic or boardview, so extract it and confirm before use. Matching the board code and revision is essential because MSI changes component layouts between revisions. Use the data to trace power rails, find shorted parts and follow signals around the EC.
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 @cidschematicandboardviewofficial. 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.