Installing Office 365 and Office 2013 (Windows and Mac) 1  1. Visit the Office Setup page. 2  2. Enter your Office product key. 3  3. Sign in with your Microsoft Account.  4. Click the Install 1  button. 5. Click .Run to start the installation.  6. Follow the prompts in the 1  installer. 7. Stay online while Office installs.  8. Finish the installation.
It is the county seat of St. Clair County, and the seat of the Roman Catholic Diocese of Belleville, Belleville is the most populated city in the Metro-East region of the St. Louis Metropolitan Area and in Southern Illinois.
Part of downstate Illinois, the Southern Illinois region is bordered by the two most voluminous rivers in the United States: the Mississippi River and its connecting Missouri River to the west, and the Ohio River to the east and south with the Wabash as tributary. Southern Illinois' most populated city is Belleville at 44,478.