• In File Explorer record the name of the file, including the extension. Example: Test.doc, Test.xls, Test.docx
• If the extension is not showing see; How to show or hide file name extensions in Windows Explorer

The crash happens when you are using custom keyboard layouts after installing the latest Office for Mac 2016 update (15.17). 

We have confirmed this issue and are working on a permanent solution.  Method 1 will walk you through how to disable the keyboard layouts for a workaround to this issue. If disabling keyboard layouts isn’t an option, follow the steps in listed in Method 2.

Method 1: Disable customer keyboard layouts to do this follow the steps below:

1. Go to System Preferences > Keyboard > Input Sources

1. Select a standard keyboard for the layout

Method 2: Enable only the “.keylayout” file from custom keyboard bundle

1. Go to your "~/Library/Keyboard Layouts" folder

1. Locate the custom keyboard layout file you want to continue using.

1. It should end in ".bundle". 

1. Move it out of that folder to the desktop or another folder

1. In its new location, CTRL-click on the file and choose "Show Package Contents"

1. Find the file that ends in ".keylayout" in the folder that appears

1. This is under "Contents/Resources"

1. Make a copy of the file that ends in ".keylayout" and put it in your "Keyboard Layouts" folder from step 1

1. Log out and log back in to your machine

1. Add the custom keyboard layout in "Input Sources" tab of Keyboard System Preferences.

1. It will be listed under "Other"

NOTE: Microsoft will be posting to this blog when we have an update to this known issue.

You may received errors such as:

"Cannot insert object"

"Object library invalid or contains references to object definitions that could not be found"

"The program used to create this object is Forms. That program is either not installed on your computer or it is not responding. To edit this object, install Forms or ensure that any dialog boxes in Forms are closed."   
       * Note In this last error message, the Forms text may also be replaced by the GUID of the control.

Additionally, you may be unable to use or change properties of an ActiveX control on a worksheet or receive an error when trying to refer to an ActiveX control as a member of a worksheet via code. 

Find the latest information about this issue click here.

Updates are Now Available: Find these links located on the following Office Update Blog http://blogs.technet.com/b/office_sustained_engineering/archive/2014/04/08/april-2014-office-update-release.aspx

As reported, Microsoft is working on a fix to address the recently reported Vulnerability with RTF files in Microsoft Word.

• Microsoft Security Advisory (2953095)
  Vulnerability in Microsoft Word Could Allow Remote Code Execution
  http://technet.microsoft.com/en-us/security/advisory/2953095

The following Security blog contains some good information about the vulnerability.

• Security Research and Defense Blog:
  Blog: Security Advisory 2953095: recommendation to stay protected and for detections
  http://blogs.technet.com/b/srd/archive/2014/03/24/security-advisory-2953095-recommendation-to-stay-protected-and-for-detections.aspx

Microsoft provides vulnerability information to major security software providers that can then use this information to provide updated protections to customers via their security software or devices, such as antivirus, network-based intrusion detection systems, or host-based intrusion prevention systems. To determine whether active protections are available from security software providers, please visit the active protections websites provided by program partners, listed in Microsoft Active Protections Program (MAPP) Partners.

Mitigation using File Block

One of the points of mitigation for the Windows versions of Word is to enable the File Block options for the Rich Text Format (RTF). This option is available in the Trust Center for Word 2010 and 2013.

Figure 1: File Block Settings in the Trust Center.

Registry keys for the RTF File Block

The registry keys for 2013 and 2013 are a little different from those for 2003 / 2007. With the later versions, the key has changed to one key from a separate key for Open and Save as in 2003 / 2007.

• Word 2013

HKCU\Software\Microsoft\Office\15.0\Word\Security\FileBlock\RtfFiles
 Dword value=2

• Word 2010

[HKCU\Software\Microsoft\Office\14.0\Word\Security\FileBlock\]
"RtfFiles"=dword:00000002

• Word 2007

Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Word\Security\FileOpenBlock]
 "RtfFiles"=dword:00000001

• Word 2003

Windows Registry Editor Version 5.00
 [HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Word\Security\FileOpenBlock]
 "RtfFiles"=dword:00000001

Deploying using a Group Policy

Here are some various articles around the Administrative templates for the various Office versions and deploying Office keys via a Group Policy.

Available Policy Template Downloads (contains the File Block items)

Group Policy Templates:

• Group Policy Administrative Template files (ADMX, ADML) and Office Customization Tool (OCT) files for Office 2013
  http://technet.microsoft.com/en-us/library/cc178992.aspx

• Office 2010 : Office 2010 Administrative Template files (ADM, ADMX/ADML) and Office Customization Tool download
  http://www.microsoft.com/en-us/download/details.aspx?id=18968

• 2007 Office system Administrative Template files (ADM, ADMX, ADML) and Office Customization Tool version 2.0
  http://www.microsoft.com/en-us/download/details.aspx?id=22666

   

More Information:

• Overview of Group Policy for Office 2013
  http://technet.microsoft.com/en-us/library/cc179176.aspx

• Use Group Policy to enforce Office 2010 settings
  http://technet.microsoft.com/en-us/library/cc179081(v=office.14).aspx

• How administrators can use Office policy templates together with the Group Policy settings of Windows
  http://support.microsoft.com/kb/924617

• Use Group Policy Software Installation to deploy the 2007 Office system
  http://technet.microsoft.com/en-us/library/cc179214(v=office.12).aspx

 Macintosh

We do not have any means to mitigate this from the Macintosh environment as we have with the File Block for RTF options that the security advisory discusses.  The Macintosh versions do not have this infrastructure for blocking the various file types and instigating Protected View.

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

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

_____________________________________________________________________________

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

Word

• The Macro button is not greyed out but when trying to run or record a macro they receive the following
  message, “The function you are attempting to run contains macros or content that requires macro language support"

PowerPoint

• The Visual Basic, and Macros options are disabled/greyed on the ribbon.
• When opening presentations with VBA code, the user receives the following message:
  "The document contains macros. Macro language support for this application is disabled. Features requiring VBA are not available. Would you like to open this document read-only?"

Access:

• When running wizards the receive the following error,  “This feature isn't installed, or has been disabled"
• When opening VBA editor the user receives “"Microsoft Access is unable to load the Visual Basic for
  Applications dynamic-link library (dll) Vbe7" when opening the Visual Basic Editor (VBE)”

Excel

• The Visual Basic, Macros and Record Macro options are disabled/greyed on the ribbon.
• When opening workbooks with VBA code, the user receive the following message, “The Visual Basic for
  Applications (VBA) macros in this workbook are corrupted and have been deleted."

In most cases repairing MS Office fixes the issue.  

What we believe is happening is there is a registry cleaner or system maintenance type application removing some our registry keys that we
need for VBA to run successfully.  In the above scenarios when the MS Office application was installed the VBA worked properly.

If you suspect you are running into this error, you should be able to resolve the problem by deleting all files in the following path:

%LOCALAPPDATA%\Microsoft\DRM

also, make sure to rename or delete the following registry key (if you choose to delete the key, be sure to back it up first):