How do I import import presets please?

No that's not a typo. I have a new pc and while I carefully backed up my import presets I can't find how to restore them. Inevitably any search on "import presets" comes up with how to import Develop presets. I've done that, got my Develop presets back but... please, how do I restore my import presets? I'm sure it falls under the heading of "it's easy if you know how" but I don't know how. Thanks.