I need to convert a USX file to USFM. I can see an option Paratext to do the reverse, but I don't see one for USX to USFM. I need to do this because Proskomma (used in Scripture App Builder for building PWAs) is rejecting 12 books of the Bible for not being in standard format. I'm hoping that converting them to USFM will make it easier for Proskomma to handle them.