RAR archive of 1.33 MB for the Z96FM board at revision 2.0, with contents not described in the name and no manufacturer given. Its size could fit a schematic, a boardview or a combination of service files, so extract it and check each file type. Since a revision 1.0 schematic also exists for this code, confirm that your mainboard is marked R2.0 before following circuits or component locations, as layouts and part values may change between revisions.
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.
7-ZipWinRARThe Unarchiver (macOS)