Both .prfpset and .prproj are files from Adobe Premiere Pro and while they can be created from a single project, it's probably not possible to convert these directly from one to another.
What might be possible, though, is to import presets from an existing or new project and apply their effects. There might be problems with different versions of the files and Adobe Premiere, though so it's not really an exact science. If you have issues or struggle with the presets, it might be worthwhile to reach out to Adobe support or online community for further assistance.
Updated: January 23, 2024