Advice getting started with parts authoring?

[Orion Pobursky]

Is the file extension relevant? It's the Mac version, so it's LDView.app.

LDDP isn't compiled for MacOS so if you're running on WINE, I have no idea. It does, however, look specifically for whatever is listed in the parentheses on the Paths setting. If that specific file name isn't in the path, it won't work.