Packed archive of 1.95 MB identified only by the code 3CCWL-RH-10, apparently a board name with RH-10 revision; the device and brand are not part of the name. Its contents are unknown until extracted with a standard archiver such as 7-Zip. Typical material for such codes is a firmware image or service documentation used to trace rails or reflash a chip. Match the label to the PCB before using anything inside. Save the original SPI contents with a programmer before writing, and check that the image size fits the chip.
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 @cyberlanelectonik. 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.