[Wannier] xsf files and plotting of the Wannier f

[sblanco]

Dear experts,
I am learning Wannier90 in the lockdown times but have problems to plot 
the Wannier functions.
After the successful DFT calculation with Wien2k, wien2wannier and 
wannier90, the sxf files do not appear.
The wannierization seems to be correct, as the DFT and Wannier band 
structures are similar.
Is there any intermediate step I am missing or some input required in 
the .win file?
Can anyone guide me through these steps?
Thanks a lot for your help and stay healthy.
Best
Santi