An archive of repair files. Shared as “N19P-Q3-A1 EDA50 LS-H273P.zip” — a .zip file, 520 KB.
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.
Built-in OS tools7-Zip