ZIP archive of 775 KB for the Epson PM235, a photo printer model, with nothing in the name about its contents. Such printer packages usually contain firmware, service tools, reset utilities or service documentation, so open it and review the files before use. Firmware for printers is normally loaded through Epson's update or service software rather than a chip programmer, although main board flash chips can also be rewritten externally. Confirm that the model and region of the printer match, and save the current settings and counters before any update.
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 @biosschematics. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.