It’s been a while since the new version of Outlook overtook the old classic version, but users are still unhappy with it. The ...
XDA Developers on MSN
Sorry, the new Outlook app can't open some Excel attachments, says Microsoft
There is a workaround, though.
Microsoft has started looking into a problem that is preventing users from opening some Excel file attachments with non-ASCII ...
Microsoft is working to resolve a known issue that prevents some users from opening Excel email attachments in the new Outlook client.
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