Windows executable whose name follows HP's SoftPaq convention (sp plus a number). The name does not say which driver, utility or BIOS update it contains or which models it supports, and the file is 12.0 MB. HP SoftPaqs are self-extracting installers, and many BIOS SoftPaqs can be unpacked to obtain the firmware binary for programmer use. Run or extract it in a safe environment and read the included documentation to confirm the target platform before applying anything.
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 @XpertsBiosSolution. Enginerys does not host this file.