MS CRM 2016 - reimport - crop field (type: Memo) with more then 4000 character

Hello,

i am trying to re-import one or more records from XLSX dynamics list. I have one attribute type Multiple Line of Text. In excel my attribute have more then 5000 characters but re-import (CRM) always crop / truncated the attribute values around 4016 character.  In CRM i can create record manually with this 5000 characters, but re-import always crop it. 

Thanks,

Stanislav Urban