Archive named MB Images, 87.4 MB in RAR format; the name does not identify a device, board or brand. Judging from the title it is probably a collection of motherboard photographs, which technicians use as references for component placement, missing parts, original markings and connector orientation. Open it and review the contents before relying on it, and compare any pictured board number and revision with the PCB you are repairing, since similar-looking boards often differ in details.
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 @nityatechnology2020. 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.