How to close a file outside of matlab？

I want to close a file（help.doc）outside of matlab using the command of matlab. This file was through the winopen() command to open. Thanks！

Answer 1

[Babak]

Can fclose() close your file?

[Walter Roberson]

No, fclose() would not be appropriate for something that was opened using winopen(). fclose() is only appropriate for objects which have been fopen()'d.

[LiJian]

Thank you for your answer.It‘s right. The fclose() is only appropriate for objects which have been fopen()'d.