Unidentified RAR archive called 108, 7.09 MB in size, with no manufacturer or model stated. Because the name is just a number, the device it covers and the type of material inside remain unknown until it is unpacked. Larger packs like this commonly contain multi-page schematics or combined schematic and layout files used to trace rails, find component positions and diagnose shorts. Extract it with WinRAR or 7-Zip, check the title blocks or file headers to identify the board, and verify it matches your unit.
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 @tamirat_moobile. 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.