Hold Control + click the file to launch the installer. Tip: If you see an error that says the Microsoft Office installer.pkg can't be opened because it is from an unidentified developer, wait 10 seconds and move the downloaded file to your desktop. Once the download has completed, open Finder, go to Downloads, and double-click Microsoft Office installer.pkg file (the name might vary slightly). View Need help? and review the solutions under Account questions. Tip: Don't see an install option after signing in? There could be an issue with your account. To complete the installation, follow the prompts in the 'Install Office' section below. Select Office 365 apps from the dropdown to start the download and installation process.Students: Your email address is your username the Office 365 home page select Install Office. Note: To use Office 365 you must use the email address provided by the University. Sign in with your University email address. Go to and if you're not already signed in, select Sign in. This article will provide instructions on how to download and install Microsoft Office 365 at no cost on a Windows PC.īefore you begin, make sure your computer meets the system requirements.