At any time, you can browse through document versions and go back to an older version.

A version is saved automatically every hour, or more frequently when youre making many changes.

A version is also saved when you open, save, duplicate, lock, rename, or revert a document.

Browse, restore, duplicate, and delete versions On your Mac, open the document, then choose File Revert To Browse All Versions.

Display the version you want, then do one of the following: Restore your document to this version: Click Restore.

Duplicate this version in a new document: Press and hold the Option key, then click Restore a Copy.

Explicitly save a version On your Mac, open the document, then choose File Save.

To save the document using a different filename, location, or format, press and hold the Option key, then choose File Save As.

Revert a document to the last opened version On your Mac, open the document, choose File Revert To, then choose Last Opened, Last Saved, or Previous Save.

See also Back up your files with Time Machine on Mac Restore items backed up with Time Machine on Mac.

Revert To Excel 2008 For Mac