I don't know of any tutorial for this, so I'll move this topic to different board.
But there is an FAQ item about it:
https://inkscape.org/en/learn/faq/#how-open-eps-files-windows (You know PS and EPS are related, right?)
Once you have the PS file open, Save as SVG. Probably some paths might need to be cleaned up a bit, depending on what kind of objects are in the original PS files. Then you can just use the extensions as needed.
If you find some problems in the file after conversion, and you aren't sure about "cleaning up" you're welcome to share a file with us - SVG file please (not everyone is set up to handle the PS/EPS files).