In F-Spec, The <b>IGNORE</b> keyword allows a record format from an externally described file to be ignored. The external name of the record format to be ignored is specified as the parameter recformat. One or more record formats can be specified, separated by colons (:). The program runs as if the specified record format(s) did not exist. All other record formats contained in the file will be included.
Generally, It will be much useful in case of display files(where you will have multiple record formats).