Cannot open files in repository


I am a little bit confused by your repository section (openZmeter). I was looking for some files such as PCB and schematic that can be opened by Altium designer software.

There are some .dch, .kicad_pcb and other formats but none of them make sense for me.
I want to make a copy of openZmeter and I expect to see a PCB file, a schematic file in the hardware section.

could you please guide me?
Thank you in advance.

Hi, .dch, kicad_pcb and others are the pcb and schematics in KICAD software.