rewind Rewind the position of a file pointer boolrewind resourcehandle Sets the file position indicator for handle to the beginning of the file stream. &return.success; The file pointer must be valid, and must point to a file successfully opened by fopen. If you have opened the file in append ("a" or "a+") mode, any data you write to the file will always be appended, regardless of the file position. See also fseek and ftell.