Archive in RAR format, about 1.43 MB, titled 5LXWVRH02, which looks like the same code family as 5LXWV-RH files but without hyphens and with 02 at the end. The name gives no brand, model or board, so identification relies on opening it and comparing it with markings on the hardware. If the contents are a firmware image, read and keep a backup of the existing chip before flashing, confirm the chip size matches, and verify the write with your programmer software afterwards.
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 @schematicslaptop. 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.