If Tecplot 360 2012 reads the data file, then Tecplot 360 EX 2014 should read it in as well. Perhaps the data are in a Tecplot ASCII format (which is suggested by the header information), so try this in 360 EX:
File>>Load Data Files in the menu that opens select “Files of type:” as Tecplot Data Loader (*.plt *.dat), and in the “File name:” type out *.out (or *.txt or *.*). Next browse to the location of the files. Tecplot should now “see” the files. Click on the file that you want to load, and click on “Open”.
The data should load, and you may be good to go.