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  Message:      RT138
 
  Text:         File closed with lock- cannot be opened
 
  Severity:     Recoverable
 
  Explanation:  You are attempting to open a file which you
                previously closed with lock, which violates one of the
                general rules of COBOL programming.
 
  Resolution:   You will not be able to open the relevant file.  As
                this error implies that your program has a mistake in its
                logic, you may want to close any remaining open files,
                execute a STOP RUN statement and recode.
                                    -♦-