I got an email back from Thorsten Lemke (of Lemke Software, makers of GraphicConverter) showing that, in its browser window, you select the files, control click for a contextual menu, select General Metadata>Export Summary as>CSV. You first use the same submenu to Define Summary, which has a huge number of Exif and IPTC things to include.

The result looks like this, in Numbers:

This uses the Browser window which is a bit different from the Convert window that Matti Haveri suggested.
The downside of using GraphicConverter is that you have to export the pictures from Photos. GC does not talk directly to Photos.
Thorsten Lemke always responds very quickly. He sent a short video of how to do this. I haven't heard back from PowerPhotos, yet. That works directly with Photos, so it would save steps and storage space.