8.3 File Name Relationships

FreeForm ND-based programs expect certain relationships between data file and format description file names as outlined below.

• The data file is named datafile.ext where datafile is the file name of your choosing and ext is the extension. Example: latlon.dat
• The corresponding format description file should be named datafile.fmt. Example: latlon.fmt
• If one format description file is used for multiple data files, all with the same extension, the format description file should be named ext.fmt. Example: ll.fmt is the format description file for lldat1.ll, lldat2.ll, and lldat3.ll.

Again, although not required, it is to your advantage to use these conventions.