I received a .msg file attachment to an email message I received with Microsoft Outlook for Mac, which is part of Microsoft Office 2016 on my MacBook Pro laptop. When I double-clicked on the attachment in Outlook to view the contents of the file, I saw "There is no application specified to open the document Re_ Netbond.msg."
And also a window giving me an option to "Search App Store" with the message "Search the App Store for an application that can open this document, or choose an existing application on your computer."
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