Archive with Internet Download Manager version 6.42 build 42, a Windows download accelerator, 27.3 MB in size. It is general-purpose software rather than repair data and contains nothing specific to a board or device. Workshops sometimes use such a manager to resume large firmware or driver downloads. Obtain it from the official vendor where possible and scan third-party archives, as repackaged installers can carry unwanted software.
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)