# frewind

## Purpose

Rewind an open file.

## Synopsis

    frewind(fid)

## Description

`frewind(fid)` sets the file pointer to the beginning of the file with identifier `fid`.

Rewinding a `fid` associated with a tape device may not work even though `frewind` does not generate an error message.

## See Also

    fclose, ferror, fopen, fread, fscanf, fseek, ftell, fwrite, sprintf

(c) Copyright 1994 by The MathWorks, Inc.