Under your name at the end of the letter, skip two lines. On the third line, write "Enclosure:" or "Enclosures:" if there are multiple documents. Skip a line after "Enclosures:" and then begin your list of enclosures. Put each enclosed document title on its own line.
If something is enclosed with a letter, the notation “Enclosure” is typed a double-space below the writer's initials and/or typist's initials. If more than one item is enclosed, the word is made plural and followed by the number of items (e.g., “Enclosures 2”).
On a paper business letter, you often include the CC line underneath your signature, either above or below any enclosures line. Here are the various abbreviations you can use to note carbon copy on printed business letters: cc: c.c.
The enclosure is typically mentioned at the end of the letter, after the closing, and is indicated by the word "Enclosure" or "Enclosures" followed by the number of documents included. For example, "Enclosure: 1 resume" or "Enclosures: 2 writing samples, 1 reference list."