How to import this field and substitue ; to CR/LF


How can I import this downloaded TXT Field with an import filter and substitute ; to CR/LF?

CC     951 Materials Science; 921.6 Numerical Methods; 921 Applied Mathematics;

       914.1 Accidents and Accident Prevention; 723.5 Computer Applications;

       662.1 Automobiles; 652.1 Aircraft, General; 601.2 Machine Components;

       422.2 Test Methods; 421 Strength of Building Materials, Mechanical

       Properties; 408.1 Structural Design, General