What encoding do the .CS files use?

when I open any of the .CS files or .hlsl files in JEdit, I get the following message "cannot load with the encoding "CP1252". I checked and CP1252 is indeed set as the default encoding in JEdit. I don't know much about encoding, can someone please tell me what I should set it to? Also, If I load the file anyways, which it will seem to do after giving me the warning, will it corrupt the file?