Microsoft Excel For Mac Unsupported

Microsoft Excel For Mac Unsupported 9,9/10 163 votes

Unlock the full Microsoft Office experience with a qualifying Office 365 subscription for your phone, tablet, PC, and Mac. Office 365 annual subscriptions purchased from the app will be charged to your App Store account and will automatically renew within 24 hours prior to the end of the current subscription period unless auto-renewal is disabled beforehand.

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UPDATE:

Upon further analysis of the files that have been submitted to us for investigation, the analysts

have determined that the files are encrypted with a private and public key.

Unless the private key is available, the files will not be able to be recovered.

The private key is more than likely held by the attacker.The premise of ransom ware such as this is

that if a person pays the ransom, a key is provided to unlock the files.

We encourage you to determine whether this software or your intended use is legal. Even if we try to check the program files for viruses, we cannot guarantee 100% that they are clean. Give us one message by click.cannot be held liable for issues that arise from the download or use of these software products. Try or.If you use Internet Explorer 7 or later on Windows XP SP2 or Vista you should.Still problems? Vp eye software.

The best course of action is to clean up the malware and then restore files from a backup.

We have identified the malware as a new family of ransomware

  • Infection: Trojan:Win32/Bumat!rts AVSubmit Detectable with AM definitions version: 1.157.1559.0 or laterhttp://www.microsoft.com/security/portal/threat/encyclopedia/entry.aspx?Name=Trojan%3aWin32%2fBumat%21rts&ThreatID=-2147341227
  • Infection: Trojan:Win32/Crilock.A. Detectable with AM definitions version: 1.157.1542.0 or laterhttp://www.microsoft.com/security/portal/threat/encyclopedia/Entry.aspx?Name=Trojan%3aWin32%2fCrilock.A

Definition Information:

Latest public Endpoint AM defs: 1.157.1542.0 (Expect several hours later for 1.157.1559.0 or higher) http://www.microsoft.com/security/portal/definitions/whatsnew.aspx

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Latest Prerelease AM defs: 1.157.1542.0 (Expect several hours later for 1.157.1559.0 or higher) http://www.microsoft.com/security/portal/shared/prereleasesignatures.aspx

The signatures are now updated. You should be able to use Safety Scanner to detect and clean it. It does NOT clean your documents, so you will want to restore from a backup after cleaning the malware from your system.

  • Microsoft Safety Scannerhttp://www.microsoft.com/security/scanner/en-us/default.aspx

More Information:

We are currently investigating an ongoing situation where users may encounter an error when trying to open Office documents.

The error can happen opening any Office file type, not just Excel files as shown in the image below. The error says:

'Cannot open the file .. because the file format or extension is not valid. Verify, that the file has not been corrupted and that the file extension matches the format of the file.'

It's recommended you update the definitions in your antivirus software and run a complete scan of the affected machine(s).

When opening binary Word (.DOC) files that are attributed with this issue, Word does not know how to open, so you receive a dialog for File conversion as shown below.

We've had reports of it affecting Word documents, Excel files, PowerPoint files and Access databases.

Other Support Blog links

  • Excel
    http://blogs.technet.com/b/the_microsoft_excel_support_team_blog/archive/2013/09/07/quot-cannot-open-the-file-because-the-file-format-or-extension-is-invalid-quot-opening-office-files.aspx
  • PowerPoint
    http://blogs.technet.com/b/bgp/archive/2013/09/09/3595491.aspx

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Microsoft Security Essentialshttp://www.microsoft.com/security/pc-security/mse.aspx