If you have both a Microsoft account and a Microsoft 365 work or school account, it's easy to switch between them without leaving any of your Microsoft 365 apps.
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From a Microsoft 365 web app, like Word for the web, Excel for the web or PowerPoint or the web, select your name, initials or picture at the top right of browser window.
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Select Sign in with a different account and follow the sign-in prompts to sign in to another Microsoft account or your work or school account.
See Also
What's the difference between a Microsoft account and a work or school account?
