Currently in the New Issue View, it is possible to have a quick preview of MS Office file types (docx, pptx, xlsx, .msg) in the 'strip view' layout. This is working as designed based on the tickets below:

• New Issue View won't preview some attachments
• Attachment Preview for Word and Excel Files in JIRA

Although, when clicking on the preview and looking at the file in the extended view, the formatting is poor as seen in the video linked here.

The request here is to enhance the attachment preview rendering and allow the ability to edit the docs from within this view as well. 

Adding to the request, need help in supporting rpmsg encrypted file types.

When an attachment is of encrypted rpmsg file type, Jira doesn't read this type of file. Requesting the ability to read this file