Archive for a Lenovo M700 desktop, sixth-generation Intel platform, marked as tested and working. At 27.5 MB it probably holds a BIOS dump plus related files, though the name does not specify, so check the contents. Images of this kind are written to the board's SPI flash with a programmer to recover a machine that will not POST. Read and keep the original chip contents first and check that each image's size matches the target chip.
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 @hrtechno. 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.
7-ZipWinRARThe Unarchiver (macOS)