ZIP archive of 8.39 MB intended for the Samsung SM-J610F, the Galaxy J6+ model. The file name does not list the documents inside, though packs of this size often combine schematic sheets with a board layout. A technician would use it to follow power distribution from the PMIC, check the charging and USB-C or micro-USB area, locate display and camera connectors and isolate shorted components. Extract it with any archive tool and match the PCB revision code printed on the board against the drawings before use.
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 @tamirat_moobile. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.