Simple workarounds like restarting Outlook do not resolve the problem; the attachment remains inaccessible even after the application has been restarted. What will we do next? No need to worry, though. To assist you in resolving the problem. We have mentioned steps below to Fix Unable to Outlook Open Attachments on Windows

Ways to Fix Unable to Outlook Open Attachments on Windows

Unrecognized File Format

Ask the sender to resend the file as an attachment in a format that your computer system can access. Install software that can open such a file format. This second option is advisable if you will be dealing with this particular file format a lot.

Bad File Association or Problem with Program

If you want to use this particular program to open all your attachments going forward, tick the box beside the option “Always use this app to open” and select “OK“.

Antivirus Programs Preventing

Outlook Add-ins

Final Words

So here we conclude our article on how to Fix Unable to Outlook Open Attachments on Windows.Microsoft Outlook is a fun email programme with lots of functionalities. Despite being useful, it can occasionally cause headaches. One such experience makes me think of the error notice “Unable to open Outlook attachments.”

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