Outlook for Mac

a small delete messages window popped, no indication of what folder, and the horizontal delete bar with a count of how many messages were being deleted was displayed, I hit the stop button, the deleting stopped but now I have the small delete messages window up and no way to cancel it, I can't click on anything else to select a note from my in box, can't quit Outlook.  How do I clear this condition?  I clicked on stop because I didn't want messages deleted when I didn't know what folder the deleted messages were in, and I might not want these messages deleted.