If relevant and material matter offered in evidence is embraced in a document containing other matter, the offering party shall designate specifically the matter so offered. If other matter in the document would unnecessarily encumber the record, the document will not be received in evidence; but, at the presiding officer's discretion, the relevant and material matter may be read into the record or copies thereof received as an exhibit. Other parties shall be afforded opportunity to examine the document and to offer in evidence other portions thereof believed material and relevant.
Mo. Sup. Ct. Op. R 12-15.13