Cause: The user exported an object with data type NTEXT, but the EIF file that will result from the EXPORT command is not written in Unicode. Because no non-Unicode file can represent all possible Unicode data, it is possible that some data will be lost when converting from the Unicode NTEXT object to the EIF file. The EIF file will be written in the character set indicated by the "nls_charset" argument of the EXPORT command, or, if no such argument is present, in the database character set.