An archive of repair files. Shared as “HITACHI - CDH-LE40SMART04 - 5800-A8R16B-1P00 - Upgrade V211.zip” — a .zip file, 82.9 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 @led_software. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Built-in OS tools7-Zip