Typing into Outlook, Word, or OneNote could trigger a devastating crash, Microsoft has cautioned. A frustrating glitch that's crept into Office 365, which is used by 400 million paid subscribers worldwide, causes the software to "unexpectedly close" when you type or check the spelling of a word.Microsoft has confirmed that it's aware of the bug, which seems to impact Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, Pow…