Developers with active MSDN subscriptions can still download legacy components via the Subscriber Downloads portal.
Lost in Translation? How to Download & Install Microsoft Office 2010 Proofing Tools (Legacy Guide) microsoft office 2010 proofing tools download
However, if you are still using (yes, it is technically end-of-life, but many businesses and power users stick with it for stability), you have likely hit a wall. You try to check spelling in a foreign language, and Office gives you the dreaded red squiggly line on every single word. Developers with active MSDN subscriptions can still download