REFM90 : Convert SCFS-90 file to/from a BDF

REFM90   Option Code Arg   Def
  1 reformat mode xtal   convert archive bdf to SCFS file  
      scfs   convert SCFS file to archive bdf  
  2   pack      
      fobs   format of lines in the HKL PACK or  
      fsqr   HKL section of the SCFS file  
      int   produced in xtal reformat mode  
      calc      
  3 SCFS sequence checking chek   enabled  
      noch   disabled  
  4 data set number     output in xtal mode 1