Archive for the Lenovo ideapad 330-14IGM laptop, machine type 81D0, marked new, which probably means a newer BIOS release. The 7.45 MB contents likely consist of BIOS firmware for this Gemini Lake-based model, either as an update package or as a dump. Open it and check what it holds before flashing. If you program the SPI chip directly, read and keep the original contents first, confirm that the machine type matches, and make sure the image size equals the flash capacity.
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.