Tiny 47.2 KB RAR named as a patch for ACDSee Luxea Pro Video Editor 8, a video editing application. At this size it contains only a small executable or replacement file, not the program itself. Patches of this kind modify software binaries and are a common route for malware, so scan the archive carefully. It has no use for schematics, boardviews or firmware work, and should be kept off computers used for programming SPI chips or storing client data.
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.
7-ZipWinRARThe Unarchiver (macOS)