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"The file is corrupted and cannot be opened" error message when you open an attachment in Office 2010

When you try to open a Microsoft Office email attachment in Microsoft Outlook 2010, Microsoft Office 2010 reports a problem with the file, and the file does not open. 

Error message details

You may receive one of the following error messages:

Microsoft Excel

The file is corrupted and cannot be opened.

Microsoft Word

Word Experienced an error trying to open the file.

Microsoft PowerPoint

PowerPoint found a problem with content in filename. PowerPoint can attempt to repair the presentation.

If you want to manually set component security settings back to the default settings, follow these steps:
  1. Click Start, type dcomcnfg in the Search box, and then click dcomcnfg in the Programs list.
  2. In the navigation pane, expand Component Services, expand Computers, right-click My Computer, and then click Properties.

  3. Open the Default Properties tab, and then set the following values:
    • Default Authentication Level: Connect
    • Default Impersonation Level: Identify

  4. Click OK.


Article ID: 2387587 - Last Review: 08/05/2016 07:12:00 - Revision: 14.0

Microsoft Excel 2010, Microsoft Word 2010, Microsoft PowerPoint 2010

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