@pspp{} tries to automatically detect the encoding of string data in the
file. Sometimes, however, this does not work well encoding,
especially for files written by old versions of SPSS or @pspp{}. Specify
-the @subcmd{ENCODING} subcommand with an IANA character set name as its string
+the @subcmd{ENCODING} subcommand with an @acronym{IANA} character set name as its string
argument to override the default. The @subcmd{ENCODING} subcommand is a @pspp{}
extension.