Trying to consolidate mail from many years, many computers, many systems, many individual backups. Eudora and Mail have been used exclusively. The Mail.app files are the most problematic. The window from which one is supposed to make selections of individual boxes is too small to accommodate more than the first several letters of their descriptions. The critical information extends, invisibly, beyond the right frame of the window. About 15 to 20 individual "Mail" folders, several of which overlap in their contents, must be sorted/consolidated. Is there a helper app which might save me several days' frustration?