1. Change where to automatically save files. On the Word menu, click Preferences. Under Personal Settings, click File Locations. Under File locations, click AutoRecover files, and then click Modify. Find the location where you want to automatically save files, and then click Choose.
2. May 14, 2014 Hi, this is the forum for MS Office for Windows, so limited expertise is here for Mac issues, but, if you want an old version of a file, maybe there is a copy in your Trash bin? (or whatever it's called on a Mac).

• Microsoft Word Document Online
• Edit Undo Microsoft Word
• Find Word Documents Saved

Press Ctrl+Z or click (Undo) in the ribbon until you've fixed the issue. You can't undo some actions, such as clicking commands on the File tab or saving a file. If you can't undo an action, the Undo command. If you plan to share the document with people who use an earlier version of Word, you might want to work in compatibility mode and leave the document in its current file format. This is because other people may be unable to edit parts of a document that you create by using new or improved features in Word for Mac 2011 and Word 2016 for Mac.

To work together in Word for the web, you edit a document as you normally would. If others are also editing it, Word for the web alerts you to their presence, and shows you the paragraph they’re working on. There’s no special co-authoring mode and no command to begin co-authoring.

As authors come and go, Word for the web notifies you briefly.

You can always see who is currently working in the document by clicking near the top of the window.

A colored indicator shows you where others are editing the document.

Opening the document in your desktop application

If you want to make changes that require features of the Word desktop application, click Open in Word and continue editing. For example, you might want to add a table of contents or a bibliography whose entries update automatically.

Note: Co-authoring in the Word desktop application requires Word 2010, Word 2013, or Microsoft Word for Mac 2011.

In the Word desktop application, be careful not to introduce content or functionality to the document that will prevent other authors from editing the document in Word for the web. For example, don’t use permission features such as editing restrictions or marking the document as final. If you want to restrict access to the document, use the permission features where the document is stored (OneDrive, Office 365, or SharePoint).

If someone does save the document with features that aren’t supported by Word for the web, you can still co-author, just not in Word for the web anymore. If everyone in the group has Word 2010, Word 2013, or Word for Mac 2011, continue working together in Word (click Open in Word and continue editing).

If someone in the group doesn’t have one of those versions of Word, you need to remove the unsupported features from the document so that everyone can continue to work together in Word for the web. Do the following:

1. In Word for the web, click Open in Word (requires Word 2003, or later, or Word for Mac 2008 12.2.9 or later).

2. In the Word desktop application, remove the unsupported features. For details about what’s supported, see Differences between using a document in the browser and in Word.

3. Save the document (press Ctrl+S in Windows, or ⌘+S on the Mac).

4. If you used Word 2003, Word 2007, or Word for Mac 2008 12.2.9, close Word so that others can continue co-authoring the document in Word for the web.

   If another author saves the document with unsupported features before you have saved the document in Word for the web, you might not be able to save your work in Word for the web. If you have Word 2010, Word 2013, or Word for Mac 2011 you can prevent losing your changes by opening the document in the Word desktop application. Click Open in Word, copy your changes from Word for the web, and then paste them in the document in Word. When you save the document in Word, your changes are saved on the server.

Microsoft Word Document Online

If co-authoring in Word for the web isn’t working

Edit Undo Microsoft Word

If co-authoring isn’t working in Word for the web, it might be because someone has the document open in a version of Word that doesn’t support co-authoring. The document might contain features that are not supported for editing in Word for the web, or some other problem. For help, see Troubleshoot co-authoring Word documents.

Find Word Documents Saved

Note: In SharePoint 2010, Word for the web does not support co-authoring, but you can work together in Word 2010, Word 2013, and Microsoft Word for Mac 2011.