When using ANSI'74 or ANSI'85 file status codes, the run-time system returns extended file status codes if the extended file status is more specific.
Extended file status codes are of the form:
9/nnn
where nnn is a numeric value that corresponds to a run-time system error. For example, if an extended file status code of 9/029 is returned, run-time system error COBRT029 (Attempt to delete open file) provides more information about the cause.
If you are viewing this in HEX, the HEX value of the file status code might look like 3232. If you are viewing this in decimal mode, the same code will have a value of 12850. To retrieve the correct run-time system error when you are in decimal mode, you need to convert the decimal value to HEX first and then extract the correct error code.
For example, if you receive 14657 as a value for the file status, this is a decimal value. This converts to 3941HEX. The second byte of this value, 41, must be converted to Decimal before looking at the RTS error code - thus this HEX value then represents an extended file status code of 9/065 which means the error code is COBRT065, a locked file status.