I’m not sure where those formats are from, googling out I thought that they were from altium but I think that I am wrong. either way, I can’t manage to open them on kicad, so I have no idea of what to do; I took the zip under Resource | Espressif Systems doc, reference design
.dsn is normally an OrCad Designer file, so not directly importable into KiCad. My guess is the .pcb is PADS Layout file, based on the related .asc file which is sometimes exported from old versions of PADS. Also not directly importable into KiCad.
So the quick answer is you cannot directly import these files into KiCad. There are some third party options out there for conversion, but for something this simple it seems easier to just recreate it by hand.
For the OrCad import, there is an open issue on Gitlab that you can give a “thumbs up” to show your need for it. Import Cadence OrCAD/Allegro schematics/layouts (#9239) · Issues · KiCad / KiCad Source Code / kicad · GitLab
I couldn’t find an equivalent issue for PADS, but perhaps there should be to track desire for importing .pcb and/or .asc.
I think there are too many options. I know that LTSpice schematics are .asc files, and ExpressPCB board layouts are .pcb files. I would guess that maybe 5-10 circuit board design software types produce .pcb files.
The dsn files might be Specctra format. You could try opening them in Freerouting which takes dsn files as input and export Specctra ses files from there which can then be imported into KiCad.
README.pdf there says:
请使⽤用以下⼯工具打开原理理图和 PCB ⽂文件 / Use the following tools to open schematics and PCB files:
SCH: Cadence/OrCAD Capture V16.6
PCB: Mentor Graphics/Pads VⅩ.2
These formats can be imported in Altium. You can get a 15 day trial of Altium on their webpage if you answer some questions the way they want you to answer them (that you’re not a hobbyist and want to give Altium a try).
Save the project in Altium and then import it in KiCad. Works great!
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