Workflow for cleaning up stray .eml files?

Was just perusing my Eagle Filer library and noticed a few .eml files that I guess are in there independent of any .mbox files. What is best workflow for putting them in the box they are supposed to be in?

well, answered my own question – should have researched the forum first. Actually started reading the manual but got impatient. Here is the answer for posterity’s sake - EagleFiler Manual: Merge Mailboxes/Message Files