An open CDF may be deleted at any time. The .cdf file is deleted along with any variable files if a multi-file CDF. Note that if the CDF is corrupted and cannot be opened by the CDF library you will have to delete the CDF file(s) manually using the capabilities of the operating system being used. In a C application CDFs are deleted using either the CDFdelete function (Standard Interface) or the <DELETE_,CDF_> operation of the CDFlib function (Internal Interface). In a Fortran application CDFs are deleted using either the CDF_delete subroutine (Standard Interface) or the <DELETE_,CDF_> operation of the CDF_lib subroutine (Internal Interface).