&PCLASS
Controls the protection class of the current file.
NOTE: You must open the appropriate directory and/or file header
before you execute this GPA using the FHREAD statement. If you want to
access more than one file or directory, you can use the DOPEN and DNEXT statements to
cycle through the files.
If your current file system does not support this field, it will be set to null.
Read/Write - String - 16 Characters