Firmware archive named only PIH61T, which most likely refers to a desktop motherboard model, probably on an H61 chipset, although the name does not confirm the maker or revision. The RAR is 2.27 MB and presumably holds a BIOS image for programming the board's SPI flash. Since the name carries so little information, compare it against the board silkscreen and the chip markings before use. Check that the image size matches the flash capacity, and back up the original chip 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 @biosarchive. 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.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →