SaveWideStringToFile saves the string given by aContents as a file on disk named as specified by aFileName.
This procedure is similar to SaveToFile, except that SaveWideStringToFile handles unicode characters., whereas SaveToFile does not. Please also see SaveToFile.
If a file with aFileName already exists, then it will be overwritten - if attributes and permissions allow. If permissions and attributes do not allow it to be overwritten, then an exception error will be encountered.