Special Edition Using Microsoft® Office XP

Undoing and Redoing Changes

All Office applications have Undo features. If you make a mistake, click the Undo icon, or choose Edit, Undo, or press Ctrl+Z. Every Office application supports at least one level of Undo, and some enable you to undo a number of successive changes. If you discover you made a mistake five minutes ago, you might be able to recover by clicking the Undo button repeatedly. If you close your file, however, all bets are off—all Office applications clear the Undo history when you close the document.

Word and Outlook have a virtually unlimited number of Undo levels. As long as you don't close the document, you can undo anything you've done. (There are some physical limitations to the size of the Undo file, but in practice they ...