I used to use auto correct at work, but couldn't find it on later version of Word at home. Thanks to your question, I just did so. In Word, I pressed F1 (Help) typed auto correct in the search slot, and that offered me a video telling me to click on the far upper left Office icon, go to Word options, Proofing, Auto Correct Options. Then enter the text you want replaced and with what, e.g., sac to write out Sacramento, CA 958 or eml to write out (your email address).