Outlook 2016 Error Opening Word or Excel Attachment/file

Microsoft Outlook is a great application for sending/receiving emails, managing tasks, contacts, calendar and organizing your files in folders for better access.

Since it comes as part of Office suite, it is but natural to expect other formats such as Word, Excel files to be easily accessible via Outlook. However, Outlook shows an error:


“Word experienced an error trying to open the file”

"Microsoft Outlook (Protected View) has stopped working"

“The file is corrupt and cannot be opened”

The prompt also asks you to try some suggestions:

Check the file permissions for the document or drive.

Make sure there are sufficient free memory and disk space.

Open the file with the Text Recovery converter.

Install Outlook or ensure any dialogue box on Outlook is closed.

These errors show up as Office trust settings prevent you from opening untrusted files.

Follow these steps to get rid of this error:

  • Open Microsoft Word
  • Go to File -> Options -> Trust Center.
  • Now click on Trust Center Settings.
  • Click Protected View in the left pane.
  • Now uncheck the box: Enable Protected View for Outlook attachments.
  • Click OK to save changes in Trust Center window.
  • Click OK in Word Options.

Now close your Microsoft Word document and attempt to open an email with a Word document attachment.

You can repeat all the above steps in Microsoft Excel as well

If the problem still persists, it could be due to an incorrect registry entry for the preview handler.

Verify the result again after adding the correct registry entry.

  • Press Windows +R to open Run window.
  • Type regedit and hit Enter.
  • Go to the following folder:

HKEY_LOCAL_MACHINE\ SOFTWARE\ Microsoft\ Office\ ClickToRun\ REGISTRY\ MACHINE\ Software\ Microsoft\ Windows\ CurrentVersion\ Preview Handlers

  • On the right pane, right-click on an empty space. Select New and click on String Value.
  • Double click on a newly created string and enter these details:

Value Name: {84F66100-FF7C-4fb4-B0C0-02CD7FB668FE}

Value Date: Microsoft Word previewer

Repeat the procedure for Excel:

String: {00020827-0000-0000-C000-000000000046}

Value: Microsoft Excel Previewer

Note that it is important to back up the entire registry before any deletion or modification. Click to know more about different types of Outlook problems and solutions.

Also, know how to recover Word document on Mac if you have lost the file due to any reason.

Repair corrupt PST files using Remo Repair Outlook

  • If the PST file is corrupted and you are unable to access any information, you can repair the file using Remo Repair Outlook software.
  • All the steps on how to fix Outlook are given in simple steps to comprehend.
  • One of the best things about the software is its non-destructive mechanism. The software reads the file, extracts contents from the file and then creates a new healthy file by fixing all the issues.
  • Remo Repair Outlook helps you repair oversized PST files as well. If you accidentally deleted a folder on Outlook and looking for ways to recover it, Remo Repair Outlook has the best solution.
  • The PST recovery tool works on password protected and compressed files as well. Remo Repair Outlook software works on all versions of Windows and Mac Operating systems.
Outlook 2016 Error Opening Word or Excel Attachment/file was last modified: August 10th, 2020 by John Harris
3 comments on “Outlook 2016 Error Opening Word or Excel Attachment/file
  1. Elzebé Spratt says:

    Thank you so much for your help.
    I’ve been struggling with this for weeks now and as simple as 1, 2, 3, and it’s fixed.

  2. Rahul says:

    it worked. thanks

  3. Muttu says:

    Awesome, it works.

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