Go to office.com/setup and sign in with an existing or new Microsoft account and then enter your product key to redeem it*. Redeeming your key is what adds your Microsoft account to Microsoft 365 and you only have to do this once. If you're renewing a Microsoft 365 subscription with a new product key, use the same Microsoft account you previously associated with your expired version subscription.
To change from a 32-bit version to a 64-bit version or vice versa, you need to uninstall Microsoft 365 first (including any stand-alone Microsoft 365 apps you have such as Project of Visio). Once the uninstall is complete, sign in again to www.office.com and select Other install options, choose the language and version you want (64 or 32-bit), and then select Install. (See Install Visio or Install Project if you need to reinstall those stand-alone apps.)
For an Office for home product, go to office.com/setup and create a new Microsoft account or sign in with an existing one, then follow the remaining steps on that page such as entering your product key (if you have one). Your account is successfully associated with Microsoft 365 or Office when you see the page, My Office Account followed by your Microsoft account email address, and a button to install the apps. Select the PC or Mac tabs above to help you with the rest of the install process.
If you're trying to sign in with your work or school account to www.office.com and your sign in is blocked, it likely means your Microsoft 365 administrator set up a security policy that's preventing you from signing in to that location.
Not all versions of Microsoft 365 include a key, but if yours did, you need to redeem it before you can install Microsoft 365. Go to office.com/setup and sign in with an existing Microsoft account or create a new one, then enter your product key. Follow the remaining prompts to finish linking your Microsoft account with this version of Microsoft 365.
If you bought a stand-alone version of an Office app, for example Visio or Word, in most cases you install this app in the same way you install the Microsoft 365 or Office suite, by signing in to www.office.com with your Microsoft account, or work or school account and selecting Install for your stand-alone product.
After you download the Office Deployment Tool, double-click on the officedeploymenttool executable (.exe) file to extract the ODT files. When you're finished, you should have several files: setup.exe and some sample configuration.xml files. For an Office LTSC 2021-specific sample, see Sample configuration.xml file to use with the Office Deployment Tool.
Microsoft Office is an office suite for Microsoft Windows and Apple macOS operating systems. On Microsoft Windows, the suite includes Word, Excel, PowerPoint, Outlook, Access and Publisher. On macOS, the suite includes Word, Excel, PowerPoint, and Outlook.
Eligibility to download Microsoft Office on Columbia-owned devices is generally limited to University officers, support staff, faculty and specific graduate/professional students at CUIMC and CBS.
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