ASUS X556UB BIOS package, with the F1 suffix likely a variant or version tag, in a 3.58 MB RAR archive. No board revision is given in the name. The archive is for restoring SPI flash contents with an external programmer when the laptop is bricked, shows no image or keeps restarting. Inspect the contents to see whether it holds a full 8 MB dump or a smaller capsule. Check the board markings, save the original chip, and confirm the image size matches the flash before writing.
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 →