Pointer prefs are saved in a proprietary file format, I don't think any other program can load it. But the prefs program has clipboard support. Select edit / copy from the menu to copy the current image into the clipboard and then use multiview or any other program with clipboard support to load it and save as an image. However, for me this only works correctly in OS 3.9. The 3.1 prefs program mixes up the palette (but the image comes out nevertheless, only colors are incorrect).