Active content types in your files

Active content is additional functionality in a file or program, such as macros, add-ins, or data connections. This article lists active-content types that can be blocked by the Trust Center and make the Message Bars appear when you open your file.

To learn more about the Trust Center, you can see View my options and settings in the Trust Center. The following shows the Trust Center and Trust Center Settings buttons in Microsoft Word that you see after you click the File tab, and then click Options.

The Trust Center

The Trust Center in Microsoft Office checks content in files for computer viruses or other security hazards that can be delivered to your computer by active content. This check helps prevents active content from running automatically, which helps protect your computer and network.

If certain kinds of active content are blocked by the Trust Center, a Message Bar appears. If more than one type of active content is in the file, the Message Bar warning-text states, Some active content has been disabled.

Message Bar with Some active content has been disabled message

To see a list blocked active-content types, go to the Trust Center dialog box. In addition, you can use the following list to determine the various kinds of active and external content that are blocked by Trust Center.

Active content

When the following kinds of active content are in your files, the Message Bar appears:

  • ActiveX controls
  • Add-ins
  • Data connections
  • Macros
  • Excel 4.0 macros
  • Spreadsheet links

The following kinds of external content are linked externally to the file or embedded. Therefore, they're blocked:

  • Linked object linking and embedded (OLE) files
  • Color-theme files
  • Cascading style sheet (CSS) files
  • XML expansion packs
  • Links to external pictures
  • Media files
  • Real-time data servers
  • XML manifests
  • Smart documents

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Applies to:
Access 2013, Excel 2013, PowerPoint 2013, Visio 2013, Visio Professional 2013, Word 2013, Access 2010, Excel 2010, PowerPoint 2010, Visio 2010, Word 2010