Stringtable.xml assault—help!

I have experienced a sudden proliferation of "stringtable.xml" files—a couple hundred, maybe—that came out of nowhere and are apparently related to my MuseScore3 use. If I click on "Get Info," the file opens up to reveal that it's in one of many foreign languages—Spanish, Italian, Chinese, Finnish, etc., etc. (see attached screenshot). If I try to delete one, a dialog box asks for my computer (iMac) password to do it, which sounds kind of fishy to me. Although CleanMyMacX is not indicating any malware, this situation is alarming; I don't know what these files are, and I want to get rid of them (and prevent the accumulation of any more of them). Can anyone help me out?

Thanks.