Library /sys$common/syshlp/basichelp.hlb Run time errors, FILATTNOT  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  File attributes not matched (ERR=160)

  The following attributes in  the  OPEN  statement  do  not  match  the
  corresponding attributes of the target file:

   o  ORGANIZATION
   o  BUCKETSIZE
   o  BLOCKSIZE
   o  RECORDSIZE
   o  Key number, size, position or attributes (CHANGES, DUPLICATES)
   o  Record format

  Change the OPEN statement attributes to match those  of  the  file  or
  remove the clause.