thesourcerer8

Hmm, you could try to rename the files to .PcbDoc if you are running on a case-sensitive filesystem. If that doesn't help, can you provide me some test-files please?

Ahh, those files are in the Protel ASCII format, not in the Altium Binary format. You could convert them to the binary format if you had an Altium license, and...

Please provide a demo-file, which I can use for testing/developing.

Long ago, when I saw the first few files, I thought that pour_index is between 0 and 100, but then suddenly I got files with a pour_index far outside that...

Can anyone with an Altium license check the meaning of positive and negative priorities please?

I pushed an addition to prevent too long lines (line #17868 might be too long for KiCad) , please try it whether that solves the problem.

Please take a look whether any of the existing PCB design tools out there is able to import OrCAD already, I think I have seen that importing capability somewhere.

Can you open it in an old Protel version, save it as Protel, and then open the Protel file in a recent Altium?

I think the old versions can be found on the internet.

I have been using gerber-files for differential testing quite a lot, but there are a number of things that aren't specified in the layout file, that are handled differently by...