Razer RZ09-01962 file set in a 4.44 MB zip, where the RZ09 prefix marks a Razer Blade notebook model. The name reveals nothing about the motherboard revision or what kind of files are packed inside, so inspect the archive before relying on it. Packages like this usually serve firmware recovery, for example writing a BIOS region back to the SPI flash. Match the model code on the bottom label, keep a verified backup of the original chip, and check that the file size corresponds to 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 .zip file
Compressed archive that every operating system opens without extra software.