Archive named for an offline update package, most likely antivirus signature data, 136 MB in ZIP format. It does not relate to a specific laptop or motherboard and contains no board numbers, schematics or firmware details in its name. Technicians may use such a package to update security software on a repaired machine without an internet connection. Scan and inspect the contents before use, and confirm that the version matches the installed software.
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 @laptopdesktop. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Built-in OS tools7-Zip