Hello, i am relatively new linux user so please be as thoroughly descriptive as you can. i am starting a project and i have a file "file.hdf5" which contains velocity data i need to process in my fortran program. What do i have to do in order to use the data inside this file? i normally use .dat extensions and i simply do: open(unit=1,file="file1.dat",status="replace") do i=1,N read(1,*)... enddo In this case what procedure should i follow?? Is it possible to do it directly from fortran or i must extract them using python?? I need any libraries for this and if so how do i install and use them ( haven't used any libraries before). if anyone has the courage to explain i would appreciate!!