ZIP archive of 2.22 MB for the A75M motherboard, revision V1.0 according to the name. The contents are unspecified and could be a firmware dump, schematic or other repair files. Extract it with 7-Zip or a similar tool and review it. Confirm that the version marked on the PCB is V1.0, since files for other revisions may not match. Before programming the SPI flash, save the original chip contents with a programmer and check that the image size corresponds to the chip 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 @laptopchiplevelrepair. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.