Crystallographic Information Framework



CIFIO is the primary CIF input and output program in the Xtal System and provides for global data exchange and machine-readable publication submission. CIFIO also creates and reads an Xtal archive file which is a CIF-like ASCII replica of an Xtal binary file.

Distribution and status

See Xtal.

Language and platform

The software is written in Fortran 77 generated from a RATionalized MACro (RATMAC) preprocessor to insulate the code base from variations in F77 dialects and operating-system specific functionalities.


Terms and conditions of use

Copyright in the software © 1983-2001 The Xtal System of Crystallographic Software. The University of Western Australia. All Rights Reserved
Copyright © 2002 The Gnu Xtal System of Crystallographic Software.
Xtal was developed by research workers supported by grants from a wide range of agencies. The names of the program authors are listed at the start of each program description and it is important that acknowledgement is given to the author(s) in any resulting publications and presentations.

Please use the following acknowledgement formats.

General use of the System:
Hall, S. R., du Boulay, D. J. & Olthof-Hazekamp, R. (2000). Eds. Xtal3.7 System. University of Western Australia.

Hall, S. R. (1999). CIFIO. Xtal3.7 System. Eds. S. R. Hall, D. J. du Boulay & R. Olthof-Hazekamp. University of Western Australia.

This version of Xtal is distributed under the GNU General Public License.


Hall, S. R. (1993). CIF applications. II. CIFIO: for CIF input/output in the Xtal system. J. Appl. Cryst. 26, 474-479. [details]

Hall, S. R. & Bernstein, H. J. (1996). CIF applications. V. CIFtbx2: extended tool box for manipulating CIFs. J. Appl. Cryst. 29, 598-603. [details]