What is the Chinese equivalent of "Encl." used in formal, written correspondences to alert the recipient of the presence of enclosed documents?
随信附上 or 附件
Here is a webpage of baidu(an chinese website) zhidao (pinyin, which means know) which explains Encl. in chinese and english. http://zhidao.baidu.com/question/40359245.html Hope it is helpful. :)