Intel® Fortran Compiler 16.0 User and Reference Guide
General Compiler Directives: FREEFORM specifies that source code is in free-form format. NOFREEFORM specifies that source code is in fixed-form format.
!DIR$ FREEFORM
!DIR$ NOFREEFORM
When the FREEFORM or NOFREEFORM directives are used, they remain in effect for the remainder of the program unit, or until the opposite directive is used. When in effect, they apply to include files, but do not affect USE modules, which are compiled separately.