Zipped BIOS package of 836 KB whose name points to an HP CQ61 notebook, presumably the Compaq Presario CQ61 line, with the tokens OP6 and clean included. The meaning of OP6 is not stated, and clean likely marks a dump prepared for reuse, though the name does not say what was removed. Unpack it and check the image size against the board's flash chip before programming. Read and save the original chip first, and confirm the board matches your unit, since CQ61 models shipped with different motherboards.
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 @biosfilebins. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →