Soft32 rates Outlook PST Viewer tool with 5 stars to flawlessly open and read PST file along with the respective attachments using the Attachments view. Software Suggest SoftwareSuggest states Outlook PST Reader as the best-recommended software for delivering out of the box and proven features, unlike other viewer utilities. The first major reason why you may not be able to open an attachment in outlook is that the file is in a format that your computer cannot recognize. More so, it could be that your system does not have the software necessary for opening the file format.

Open Outlook in safe mode and try to see/open the attachments.Outlook Web App Attachments

One of the most common reasons why you can't open an e-mail attachment is because your computer doesn't have the necessary program installed to recognize the file format. For example, if someone is sending you a.PSD image file and you don't have Adobe Photoshop or another program that supports it, the file format cannot be opened.

One common problem that people experience when using NHS NET is that they cannot open attachments. When clicking on attachments errors are given or the system states “Cannot open as web page”. This problem is easily resolved. You need to make sure when you log in you select “This is a private computer”. This is essential if you wish to view attachments in the web based system. Sep 04, 2020 · Fix Unable to Open Outlook Attachments Issue. By Disabling Antivirus Temporarily: Sometimes, installed Antivirus, Firewall or Malware block Outlook function to download or open the email attachments. So, the primary action which you can take is disabling these applications temporarily and accessing the Outlook email attachment again.

Outlook 365 Attachment Settings