In the professional edition, you can use the
Batch Wizard with the
HTML Tidy tool to run a batch fix on multiple files. Of course, make sure you have a backup first because it will change your files!
Or you could use the
Drag and Drop Window with the
HTML Tidy tool (in the standard and pro editions):
http://www.htmlvalidator.com/htmlval/v1 ... dialog.htmThe
Drag and Drop Window lets you drag and drop files on it and use the tool that you want on the dropped files.
To see the
Drag and Drop menu, you may need to check
View->Menus->Drag and Drop.
I hope this helps!