BIOS binary for the Acer Extensa 4620, marked ok in the name, which indicates it was reported as working; the model is misspelled exenca and Raju appears to be a source label. It is a 1.00 MB image for an 8 Mbit SPI flash chip. The motherboard number and revision are not given, so verify the PCB before relying on it. Repair shops use such dumps to reflash corrupted firmware with a CH341A or similar programmer. Read and keep the original chip data first, then program and verify the image before testing power-on.
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 →