- There is a compatibility problem between your antivirus program and Office.
- The file that you are trying to open is infected with a virus that your antivirus program was unable to remove.
- The file that you are trying to open has been damaged.
To resolve the first two problems, you have to update your antivirus program. To resolve the third problem, you have to try to recover the file. This article will show you how to do this.
You should ensure your Anti-Virus software is fully up to date and try opening the file again. It is important to note that the blocked file may also contain a virus which your Anti-Virus software has not been able to remove. In this case you should treat the file with caution.
An antivirus program helps protect your computer from viruses. To avoid viruses, you should never download or open files from sources that you do not trust, visit Web sites that you do not trust, or open e-mail attachments when your antivirus program is disabled.
For more information about computer viruses, click the following article number to view the article in the Microsoft Knowledge Base:
To check whether your antivirus software and its signature file are out of dateTo keep up with new viruses that are created, antivirus program vendors periodically provide an updated virus signature file that you can download from the Internet.
If you are experiencing this problem on a computer on which you have recently installed a new version of antivirus software from a CD, we recommend that you connect to the Internet as soon as possible to download the latest updates that are available from your antivirus software vendor.
For more information about how to use Office programs together with the Norton AntiVirus Office plug-in, click the following article numbers to view the articles in the Microsoft Knowledge Base:
To check whether your file is infected with a virus
If you are experiencing this problem on a computer that has the latest version of your antivirus software, that has up-to-date signature files, and on which you can open all files except this one, it is likely that the file is infected with a virus.
If your file is infected with a virus you should delete the file from your system. As soon as the file is deleted you can re-create the file or restore if from a back-up if you have one.
If the file is damagedIf the file is damaged, the file cannot be handled correctly by either the antivirus software or by the affected Office program. Therefore, to be able to use the file again, you have to try to recover the file. For instructions about how to do this, please see the articles that are listed for the Office program that you were using when this problem occurred.
NoteNot all programs have file recovery or file repair capabilities.
Microsoft ExcelFor more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:
Microsoft PowerPointFor more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:
Microsoft WordFor more information, click the following article number to view the article in the Microsoft Knowledge Base:
Article ID: 835404 - Last Review: Nov 27, 2010 - Revision: 1