The Office package installed on the user's computer is not capable of reading the files that have been uploaded into Confluence.
You'll need to fix the Office installation on the client side. All Confluence does with files is hand them over to the browser, it doesn't do anything "clever" with them that might break it in this way.
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Hi Community, Jessica here from the Confluence Product Marketing team! July’s community challenge is all about sharing pictures — and as an extension of our first post on what ...
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