Micor character µ in SAS data sets

[KoiSAS]

I have a dataset of clinical data containing the greek letter µ. How can the encoding be changed on a SAS session to allow this to be viewed, since it currently displayed as a "?"

Thanks

[Reeza]

Where are you trying to view it?

[KoiSAS]

OI am trying to view it both in SAS and using SAS viewer In each case it displays as a ?. It is version SAS 9.2. When processing clinical data, do most change this to a u?