The ENCODING specifier asks what type of encoding is in effect for a file. It takes the following form:
ENCODING = enc
enc
Is a scalar default character expression that is assigned one of the following values:
'UTF-8'
If the file is connected with UTF-8 encoding in effect.
'UNDEFINED'
If the file is connected for unformatted I/O.
'UNKNOWN'
If the processor is unable to determine the encoding form of the file.