RAR archive, 6.33 MB, holding SkinFiner version 5.7.1 for 64-bit Windows. SkinFiner is a photo retouching application for smoothing skin in portraits and is unrelated to board repair. No details about licensing or bundled files appear in the name. Treat the archive with caution as with any third-party repackaged software, scanning it before extraction and installing it only on a machine where unexpected changes would not affect repair tools or stored firmware files.
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 @laptopschematics. 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.