Convert unformatted to formatted .dat file

Question

I have a .dat file in an unformatted format and I would like to convert it to a formatted format as I cannot visualize the values and use them easily in Matlab.

The file is created with this code:

do i=1,nxyz 
   tzmt(i,1,1)=tzmt(i,1,1)+tz(i,1,1)
enddo

if (mod(itime,isave).eq.0) then
   open(75,file='vmt.dat',form='unformatted')
   write(75) tzmt
   close(75)enter code here
endif

Do you have an idea of what I could do it (I am a beginner in Fortran)?