Acer 4620 BIOS binary of 1.00 MB, marked ok in the name, which suggests the uploader found it to work, although no further test details are given. The dump is meant for reflashing the SPI chip on the motherboard when the laptop does not boot because of corrupted firmware. Its size matches an 8 Mbit flash, the usual part for this generation. Confirm the exact board variant, back up the current chip with your programmer, then erase, write and verify, checking checksums before reassembly.
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 @abgm_manutencao_bios. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →