The notations Enclosure(s), Encl. , Attachment(s) and Att. indicate that the envelope contains one or more documents in addition to the letter or attached to the letter. The number of such documents, if there are more than one, should appear after the notation.
If you need to note enclosures in a letter, leave a double space under your signature and salutation, then write “Enclosure.” To signify that your letter has more than 1 document enclosed, use the plural, “Enclosures” followed by a colon and the number of documents.
How to Write a Letter of Credit Prepare the letter of credit documents, including the credit application, bank instructions, and the credit agreement. Make sure all documents are signed, dated, and include all necessary information. Submit documents to the issuing bank. Confirm that the bank has accepted the documents.
On a paper business letter, you often include the CC line underneath your signature, either above or below any enclosures line.