When a document disappears or an edit goes wrong, start with the smallest recovery that solves the problem. If Time Machine contains an appropriate backup, you can retrieve the individual item instead of replacing everything on the Mac.

Protect the current version first

If a file with the same name still exists, save a separate copy before attempting recovery. Give it a clear name such as “current draft before restore” and place it outside the folder you are about to restore. This preserves useful changes made after the backup you want.

Write down the file's previous location and the approximate time when it was last correct. A filename alone can be misleading if several projects contain similarly named documents. For a business file, identify the project or customer without including private details in screenshots sent for help.

Browse the relevant folder's history

Connect the backup disk and open the Finder folder where the item belonged. Open Time Machine using Spotlight, move through the available backup dates and inspect the item before choosing Restore. Apple notes that restored items return to their original location, so read any replacement or duplicate-file prompt carefully.

For supported document apps, File, Revert To, Browse All Versions offers another route to earlier versions. Availability depends on the app and the versions actually retained; it is not proof that every edit can be recovered.

Open the recovered file in its usual application. Check the meaningful content, not just the name or file size: the missing paragraph, worksheet tab or photograph should be present. Keep your separate current copy until you have reconciled the versions.

If the needed date is absent, do not erase the backup or reset Time Machine. Record which dates are available and look for other independently retained copies.

Source: Apple's individual-item restore instructions.

For help with your Mac, contact AEPC in East Auckland or call 027 908 8880 to discuss your requirements.