Tiny RAR archive of 1.79 KB whose Russian name translates to registry files for connecting a printer. Despite the repair index category, it is not motherboard firmware; it most likely holds Windows .reg files that change printer or sharing settings. No printer model or Windows version is given. Inspect the contents in a text editor before importing anything, because registry changes affect the whole system, and create a restore point or registry backup first so the settings can be reverted if needed.
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 @biositechyangiyer. 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.