Generic archive of 4.52 MB in RAR format whose name carries what looks like a date stamp 28-10-23-07 and a V15-Ada label, but no brand, model or board number. Without more information its purpose cannot be stated with confidence, so extract it and examine the files inside before relying on it. If it turns out to hold firmware, verify the target board and flash size match, and keep a backup of the original chip contents before programming. Treat unidentified executables cautiously and scan them first.
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.