Returns whether ole document is dirty by checking whether the content of the file representing the document is dirty.
@return <code>true</code> if the document has been modified, <code>false</code> otherwise. @since 3.1
See Implementation
Returns whether ole document is dirty by checking whether the content of the file representing the document is dirty.
@return <code>true</code> if the document has been modified, <code>false</code> otherwise. @since 3.1