Oracle XMLDB retrieve invalid XML

Question

I have invalid XML files(some tag is missing) in XML DB which are uploaded using FTP. When I try to retrieve these files using RESOURCE_VIEW, i get below error.

SELECT rv.res.getClobVal() FROM resource_view rv WHERE  rv.any_path = '/test/test.xml';

ORA-31011: XML parsing failed ORA-19213: error occurred in XML
processing at lines 1 LPX-00210: expected '<' instead of 't'

ORA-06512: at "SYS.XMLTYPE", line 138
31011. 00000 - "XML parsing failed"
*Cause: XML parser returned an error while trying to parse the document.
*Action: Check if the document to be parsed is valid.

How to retrieve such content using SQL or PL/SQL so that it can be edited and saved?