I work for a company that begins with a lowercase letter followed by a number... call it "x4 Solutions Inc". I start a lot of sentences with "x4 Solutions" and both word and outlook capitalize the "x". The lower case x is important for our branding so I am constantly fighting the auto-correct.

Is there a way to create an exception for the text "x4" so that it does not capitalize the x when starting sentences with this text?

Under Options > Proofing > AutoCorrect Options > AutoCorrect > Exceptions it seems like I cannot create exceptions for words that contain a number. I prefer not to disable auto cap feature if possible.