On the Info tab, you can:
- Protect: control changes to a file.
- Check for Issues: inspect a file for various kinds of problems or information.
- Version History: view and restore previous versions.
- Manage: browse and recover unsaved files.
- Browser View Options: in Excel, pick what others can view on the Web.
- Compress Media: in PowerPoint, compress media files to save space and improve playback performance.
Basic File Information
At the top you'll have the name of the file, along with the path where the file is stored. Beneath that you'll find handy buttons to let you open the file location in Windows File Explorer or share the file. Depending on where the file is shared you may also have buttons that enable you to upload the file to the cloud, or copy the file path (where the file is stored) to the clipboard so you can paste it elsewhere.
Document Properties
On the side of the Info window you'll find document properties that tell you about the file. How large it is, when (and by whom) it was last edited, total editing time, and more. For more information about these properties go to: View or change the properties for an Office file.
Protect
You can use a password to help prevent other people from opening or modifying your file. You can also use document protection to restrict the types of changes that reviewers can make.
Go to Add or remove a digital signature for Microsoft 365 files if you need to assign an electronic stamp of authentication to a file.
Go to Help prevent changes to a final version of a file to notify others that a file shouldn't be edited any more.
Check for Issues
You can Remove hidden data and personal information by inspecting documents, presentations, or workbooks that you don't want to share. You can also inspect for revision tracking data, for accessibility problems, or for compatibility with older versions of Office.
Version History
Version History gives you options for working with versions of your file. You can view, and restore previous versions of your file if you want to view, or undo, changes.
Manage
You can use Manage to recover unsaved versions of your file if Office closed before you were able to save your latest edits.
If your file is stored on SharePoint, or OneDrive for Business, you can also check out your file which creates a local, private copy and blocks others from making changes to the file. When you're finished return to the Info tab to check it back in.
Browser View Options
For Excel workbooks stored on OneDrive, OneDrive for Business, or SharePoint Online, you can define which parts of the file are visible to others who open it in a web browser with Excel for the web.
Go to Use Browser View Options for more information.
Compress Media
In PowerPoint, if you have audio or video in your presentation, Compress Media appears on the Info tab. It helps you compress the media, which can improve playback performance and save disk space.
Go to Compress your media files for more information.