This command causes an external data file to be rewound. The file must already have been opened by the OPEN command.
The "ON ERROR GOTO err_label" clause can be specified to define a label to which control should be transferred in the event of an error.
REWIND fileid {ON ERROR GOTO err_label}
The name associated with the file when it was opened.
A label defined within the current scope of the Script, to which control branches if an error occurs.
REWIND datafile