An archive of repair files (board 6050A3087501). Shared as “6050A3087501-MB-A02.zip” — a .zip file, 36.4 MB.
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 @boardsscanrepo. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.