herewith means with this communication, whatever it is! If this solution is not very accurate, you can put the name or the abbreviation of the attachment in brackets. No accurate hit for sub or under-enclosure/attachment on google. On dictionaries (garzanti, zanichelli) such expressions are ...
Please find the attached file herewith Please find the attached document for your review Please find the attached document for your records Please find the attached documents for your signature Please Find Attached vs Please Find Enclosed Many people wonder if using the word “enclosed instead of “...